---
title: "Assign solution to project"
method: POST
path: "/v1/projects/{projectId}/whatsapp/solutions/{solutionId}/assign"
tags: ["WhatsApp Solutions"]
---

# Assign solution to project

`POST /v1/projects/{projectId}/whatsapp/solutions/{solutionId}/assign`

Assign solution to project, to enable Embedded Signup onboarding.

## Path parameters

- `projectId` string, required
- `solutionId` string, required

## Response `204`

Solution assigned

## Other responses

- `401` — Unauthorized
- `404` — NotFound
- `409` — Conflict
- `500` — InternalServerError

## Changes

> 4 revisions in range; 1 not diffed.

- **2026-09-01** `c6a937922d10` — 4 breaking, 17 info
  - the response's body type/format changed from ``/`` to `object`/`` for status `401`
  - the response's body type/format changed from ``/`` to `object`/`` for status `404`
  - the response's body type/format changed from ``/`` to `object`/`` for status `409`
  - the response's body type/format changed from ``/`` to `object`/`` for status `500`
  - …17 more
- **2026-08-18** `c78a716de420` — 1 info
  - api operation id `SolutionsController_assignSolution_v1` removed and replaced with `WhatsappSolutionsController_assignSolution_v1`

[Change history](https://skmtc.dev/sinch/apis/provisioning-api/changes/v1/projects/:projectId/whatsapp/solutions/:solutionId/assign/post.md)

---

[API](https://skmtc.dev/sinch/apis/provisioning-api.md) · [All operations](https://skmtc.dev/sinch/apis/provisioning-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sinch/provisioning-api/revisions/c6a937922d10/schema)