> ## Documentation Index
> Fetch the complete documentation index at: https://nango-wari-migrated-bigcommerce-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Klaviyo

## Overview

<CardGroup cols={3}>
  <Card title="Pre-built tooling" icon="screwdriver-wrench" href="#pre-built-tooling" />

  <Card title="Pre-built integrations" icon="square-check" href="#pre-built-integrations" />

  <Card title="Access requirements" icon="triangle-exclamation" href="#access-requirements" />

  <Card title="Setup guide" icon="rocket" href="#setup-guide" />

  <Card title="Useful links" icon="circle-info" href="#useful-links" />

  <Card title="API gotchas" icon="biohazard" href="#api-gotchas" />
</CardGroup>

## Pre-built tooling

<AccordionGroup>
  <Accordion title="✅ Authorization">
    | Tools                             | Status |
    | --------------------------------- | ------ |
    | Pre-built authorization (API Key) | ✅      |
    | Pre-built authorization UI        | ✅      |
    | Custom authorization UI           | ✅      |
    | End-user authorization guide      | ✅      |
    | Expired credentials detection     | ✅      |
  </Accordion>

  <Accordion title="✅ Read & write data">
    | Tools                                     | Status                         |
    | ----------------------------------------- | ------------------------------ |
    | Pre-built integrations                    | ✅                              |
    | API unification                           | ✅                              |
    | 2-way sync                                | ✅                              |
    | Webhooks from Nango on data modifications | ✅                              |
    | Real-time webhooks from 3rd-party API     | 🚫 (time to contribute: \<48h) |
    | Proxy requests                            | ✅                              |
  </Accordion>

  <Accordion title="✅ Observability & data quality">
    | Tools                   | Status |
    | ----------------------- | ------ |
    | HTTP request logging    | ✅      |
    | End-to-end type safety  | ✅      |
    | Data runtime validation | ✅      |
    | OpenTelemetry export    | ✅      |
    | Slack alerts on errors  | ✅      |
    | Integration status API  | ✅      |
  </Accordion>

  <Accordion title="✅ Customization">
    | Tools                              | Status                         |
    | ---------------------------------- | ------------------------------ |
    | Create or customize use-cases      | ✅                              |
    | Pre-configured pagination          | 🚫 (time to contribute: \<48h) |
    | Pre-configured rate-limit handling | 🚫 (time to contribute: \<48h) |
    | Per-customer configurations        | ✅                              |
  </Accordion>
</AccordionGroup>

### Others

| Function name                         | Description                                                     | Type                                           | Source code                                                                                                                                 |
| ------------------------------------- | --------------------------------------------------------------- | ---------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| `add-profiles-to-list`                | Add profiles to a list.                                         | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/add-profiles-to-list.ts)                |
| `assign-template-to-campaign-message` | Assign a reusable template's content to a campaign message.     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/assign-template-to-campaign-message.ts) |
| `bulk-import-profiles`                | Bulk-import profiles, optionally onto a list.                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/bulk-import-profiles.ts)                |
| `create-campaign`                     | Create a draft email or SMS campaign                            | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-campaign.ts)                     |
| `create-catalog-category`             | Create a catalog category.                                      | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-catalog-category.ts)             |
| `create-catalog-item`                 | Create a catalog item (product).                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-catalog-item.ts)                 |
| `create-catalog-variant`              | Create a variant of a catalog item.                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-catalog-variant.ts)              |
| `create-coupon-code`                  | Create a unique coupon code under a coupon                      | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-coupon-code.ts)                  |
| `create-coupon`                       | Create a coupon.                                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-coupon.ts)                       |
| `create-event`                        | Create an event                                                 | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-event.ts)                        |
| `create-image`                        | Upload an image from a URL.                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-image.ts)                        |
| `create-list`                         | Create a list.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-list.ts)                         |
| `create-profile`                      | Create a profile.                                               | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-profile.ts)                      |
| `create-segment`                      | Create a segment from a condition definition.                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-segment.ts)                      |
| `create-tag-group`                    | Create a tag group.                                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-tag-group.ts)                    |
| `create-tag`                          | Create a tag.                                                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-tag.ts)                          |
| `create-template`                     | Create an HTML email template.                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/create-template.ts)                     |
| `delete-campaign`                     | Delete a campaign.                                              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-campaign.ts)                     |
| `delete-catalog-category`             | Delete a catalog category                                       | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-catalog-category.ts)             |
| `delete-catalog-item`                 | Delete a catalog item.                                          | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-catalog-item.ts)                 |
| `delete-catalog-variant`              | Delete a catalog variant.                                       | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-catalog-variant.ts)              |
| `delete-coupon-code`                  | Delete a coupon code.                                           | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-coupon-code.ts)                  |
| `delete-coupon`                       | Delete a coupon.                                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-coupon.ts)                       |
| `delete-flow`                         | Delete a flow.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-flow.ts)                         |
| `delete-list`                         | Delete a list.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-list.ts)                         |
| `delete-segment`                      | Delete a segment.                                               | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-segment.ts)                      |
| `delete-tag-group`                    | Delete a tag group.                                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-tag-group.ts)                    |
| `delete-tag`                          | Delete a tag.                                                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-tag.ts)                          |
| `delete-template`                     | Delete a template.                                              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/delete-template.ts)                     |
| `get-campaign`                        | Retrieve a campaign.                                            | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-campaign.ts)                        |
| `get-image`                           | Retrieve an image.                                              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-image.ts)                           |
| `get-list`                            | Retrieve a list.                                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-list.ts)                            |
| `get-profile`                         | Retrieve a profile.                                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-profile.ts)                         |
| `get-segment`                         | Retrieve a segment.                                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-segment.ts)                         |
| `get-template`                        | Retrieve a template.                                            | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/get-template.ts)                        |
| `list-campaigns`                      | List campaigns.                                                 | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-campaigns.ts)                      |
| `list-catalog-categories`             | List catalog categories.                                        | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-catalog-categories.ts)             |
| `list-catalog-items`                  | List catalog items.                                             | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-catalog-items.ts)                  |
| `list-catalog-variants`               | List catalog item variants.                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-catalog-variants.ts)               |
| `list-coupon-codes`                   | List coupon codes.                                              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-coupon-codes.ts)                   |
| `list-coupons`                        | List coupons.                                                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-coupons.ts)                        |
| `list-events`                         | List events.                                                    | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-events.ts)                         |
| `list-flows`                          | List flows.                                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-flows.ts)                          |
| `list-forms`                          | List forms.                                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-forms.ts)                          |
| `list-images`                         | List images.                                                    | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-images.ts)                         |
| `list-lists`                          | List lists.                                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-lists.ts)                          |
| `list-metrics`                        | List metrics.                                                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-metrics.ts)                        |
| `list-profiles`                       | List profiles.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-profiles.ts)                       |
| `list-reviews`                        | List product reviews.                                           | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-reviews.ts)                        |
| `list-segments`                       | List segments.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-segments.ts)                       |
| `list-tag-groups`                     | List tag groups.                                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-tag-groups.ts)                     |
| `list-tags`                           | List tags.                                                      | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-tags.ts)                           |
| `list-templates`                      | List templates.                                                 | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-templates.ts)                      |
| `list-webhooks`                       | List webhook subscriptions.                                     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/list-webhooks.ts)                       |
| `merge-profiles`                      | Merge one profile into another.                                 | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/merge-profiles.ts)                      |
| `query-campaign-values-report`        | Query aggregate performance metrics for campaigns.              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/query-campaign-values-report.ts)        |
| `query-metric-aggregates`             | Query aggregated event data for a metric                        | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/query-metric-aggregates.ts)             |
| `remove-profiles-from-list`           | Remove profiles from a list.                                    | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/remove-profiles-from-list.ts)           |
| `request-profile-deletion`            | Submit a GDPR/CCPA data-privacy deletion request for a profile. | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/request-profile-deletion.ts)            |
| `send-campaign`                       | Send a campaign immediately.                                    | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/send-campaign.ts)                       |
| `subscribe-profiles`                  | Subscribe profiles to email/SMS marketing on a list.            | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/subscribe-profiles.ts)                  |
| `unsubscribe-profiles`                | Unsubscribe profiles from email/SMS marketing on a list.        | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/unsubscribe-profiles.ts)                |
| `update-campaign`                     | Update a campaign's name, audiences, or send strategy.          | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-campaign.ts)                     |
| `update-flow-status`                  | Update a flow's status (draft/manual/live/archived).            | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-flow-status.ts)                  |
| `update-list`                         | Update a list.                                                  | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-list.ts)                         |
| `update-profile`                      | Update a profile                                                | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-profile.ts)                      |
| `update-segment`                      | Update a segment's name or definition.                          | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-segment.ts)                      |
| `update-tag`                          | Rename a tag.                                                   | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-tag.ts)                          |
| `update-template`                     | Update a template.                                              | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/actions/update-template.ts)                     |
| `campaigns`                           | Sync campaigns.                                                 | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/campaigns.ts)                             |
| `catalog-categories`                  | Sync catalog categories.                                        | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/catalog-categories.ts)                    |
| `catalog-items`                       | Sync catalog items (products)                                   | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/catalog-items.ts)                         |
| `coupon-codes`                        | Sync coupon codes.                                              | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/coupon-codes.ts)                          |
| `coupons`                             | Sync coupons.                                                   | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/coupons.ts)                               |
| `events`                              | Sync events.                                                    | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/events.ts)                                |
| `flows`                               | Sync flows.                                                     | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/flows.ts)                                 |
| `forms`                               | Sync forms.                                                     | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/forms.ts)                                 |
| `images`                              | Sync images.                                                    | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/images.ts)                                |
| `lists`                               | Sync lists.                                                     | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/lists.ts)                                 |
| `metrics`                             | Sync metrics.                                                   | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/metrics.ts)                               |
| `profiles`                            | Sync profiles.                                                  | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/profiles.ts)                              |
| `reviews`                             | Sync product reviews                                            | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/reviews.ts)                               |
| `segments`                            | Sync segments.                                                  | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/segments.ts)                              |
| `tags`                                | Sync tags.                                                      | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/tags.ts)                                  |
| `templates`                           | Sync templates.                                                 | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/klaviyo/syncs/templates.ts)                             |

## Access requirements

| Pre-Requisites    | Status | Comment |
| ----------------- | ------ | ------- |
| Paid dev account  | ❓      |         |
| Paid test account | ❓      |         |
| Partnership       | ❓      |         |
| App review        | ❓      |         |
| Security audit    | ❓      |         |

## Setup guide

*No setup guide yet.*

<Tip>Need help getting started? Get help in the [community](https://nango.dev/slack).</Tip>

<Note>Contribute improvements to the setup guide by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/klaviyo.mdx)</Note>

## Useful links

* [How to generate private & public API keys in your Klaviyo account](https://developers.klaviyo.com/en/docs/authenticate_)
* [API docs](https://developers.klaviyo.com/en/reference)
* [API Key rate limiting](https://developers.klaviyo.com/en/docs/rate_limits_and_error_handling)
* [API Key auth related docs](https://developers.klaviyo.com/en/docs/authenticate_)
* [API Key scopes](https://developers.klaviyo.com/en/reference/api_overview#api-key-scopes)
* [How to generate an OAuth application](https://developers.klaviyo.com/en/docs/set_up_oauth#create-an-oauth-integration-in-klaviyo)
* [OAuth related docs](https://developers.klaviyo.com/en/docs/set_up_oauth#oauth-authorization-code-flow)
* [List of OAuth scopes](https://developers.klaviyo.com/en/docs/retrieve_api_credentials#scopes)

<Note>Contribute useful links by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/klaviyo.mdx)</Note>

## API gotchas

* For `API_KEY` auth mode, `Klaviyo` uses Public and Private API Keys to access different endpoints. Endpoints that begin with `/api` need to be authenticated with the private API key, while endpoints that begin with `/client` need to be authenticated using the public API key.
* If you want to use a different API version than the default one set in Nango you can override the `revision` by adding in the necessary header. For more details check [Klaviyo API versioning](https://developers.klaviyo.com/en/docs/api_versioning_and_deprecation_policy#api-versioning)
* Rate limiting in `klaviyo-oauth` is different from the [standard API rate limiting](https://developers.klaviyo.com/en/docs/rate_limits_and_error_handling). For more details check [klaviyo-oauth rate limits](https://developers.klaviyo.com/en/docs/set_up_oauth#rate-limits)

<Note>Contribute API gotchas by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/klaviyo.mdx)</Note>

<Card title="Connect to Klaviyo" icon="link" href="/integrations/all/klaviyo/connect" horizontal>
  Guide to connect to Klaviyo using Nango Connect.
</Card>