---
title: "Get Multi-Partner Solution Access Token"
method: GET
path: "/{Version}/{Solution-ID}/access_token"
tags: ["Multi-Partner Solutions"]
---

# Get Multi-Partner Solution Access Token

`GET /{Version}/{Solution-ID}/access_token`

## Request

- Base URL: `https://graph.facebook.com`
- URL: `https://graph.facebook.com/{Version}/{Solution-ID}/access_token`
- Auth: HTTP bearer

Retrieve a granular BISU access token for accessing customer business resources through the Multi-Partner Solution. The token provides secure, scoped access to WhatsApp Business Accounts that have been shared with the solution.


**Use Cases:**
- Obtain secure access tokens for partner applications to access customer business resources
- Enable multi-tenant partner architectures with dedicated tokens per customer business
- Support secure API operations on shared WhatsApp Business Accounts
- Implement proper security boundaries between different customer businesses


**Rate Limiting:**
Standard Graph API rate limits apply. Use appropriate retry logic with exponential backoff.


**Token Management:**
Access tokens are time-limited and should be refreshed before expiration. Store tokens securely and implement proper token rotation strategies.

## Path parameters

- `Version` string, required
- `Solution-ID` string, required

## Query parameters

- `business_id` string, required

## Headers

- `User-Agent` string
- `Authorization` string, required

## Response `200`

Successfully retrieved granular BISU access token

- WhatsAppBusinessSolutionAccessToken: Granular BISU access token response for Multi-Partner Solution partners
  - `access_token` string, required: Granular BISU access token for accessing customer business resources
  - `expires_at` integer, required: Unix timestamp indicating when the access token expires

## Other responses

- `400`: Bad Request - Invalid parameters or malformed request
- `401`: Unauthorized - Invalid or missing access token
- `403`: Forbidden - Insufficient permissions or access denied
- `404`: Not Found - Solution ID or business ID does not exist or is not accessible
- `422`: Unprocessable Entity - Request parameters are valid but cannot be processed
- `429`: Too Many Requests - Rate limit exceeded
- `500`: Internal Server Error - Unexpected server error

---

[API](https://skmtc.dev/meta/apis/whatsapp-business-messaging.md) - [All operations](https://skmtc.dev/meta/apis/whatsapp-business-messaging/llms.txt) - [OpenAPI document](https://skmtc.dev/meta/apis/whatsapp-business-messaging/revisions/5c1973265369?raw)