---
title: "Associate Items to a User"
method: POST
path: "/user/items/associate"
tags: ["plaid"]
---

# Associate Items to a User

`POST /user/items/associate`

Associates Items to the target user. If an Item is already associated to another user, the Item will be disassociated with the existing user and associated to the target user. This operation supports a max of 100 Items.

## Request body

- UserItemsAssociateRequest — UserItemsAssociateRequest defines the request schema for `/user/items/associate`
  - `client_id` string — Your Plaid API `client_id`. The `client_id` is required and may be provided either in the `PLAID-CLIENT-ID` header or as part of a request body.
  - `secret` string — Your Plaid API `secret`. The `secret` is required and may be provided either in the `PLAID-SECRET` header or as part of a request body.
  - `user_id` string, required — A unique user identifier, created by `/user/create`. Integrations that began using `/user/create` after December 10, 2025 use this field to identify a user instead of the `user_token`. For more details, see [New User APIs](https://plaid.com/docs/api/users/user-apis).
  - `item_ids` ItemId[], required — An array of `item_id`s to be associated with the `user_id`.

## Response `200`

OK

- UserItemsAssociateResponse — UserItemsAssociateResponse defines the response schema for `/user/items/associate`
  - `request_id` string, required — A unique identifier for the request, which can be used for troubleshooting. This identifier, like all Plaid identifiers, is case sensitive.

## Other responses

- `default` — Error response

---

[API](https://skmtc.net/plaid/apis/the-plaid-api.md) · [All operations](https://skmtc.net/plaid/apis/the-plaid-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/plaid/the-plaid-api/versions/64c4514ea59b/schema)