<p>Trains or retrains an active solution in a Custom dataset group. A solution is created using the <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_CreateSolution.html">CreateSolution</a> operation and must be in the ACTIVE state before calling <code>CreateSolutionVersion</code>. A new version of the solution is created every time you call this operation.</p> <p> <b>Status</b> </p> <p>A solution version can be in one of the following states:</p> <ul> <li> <p>CREATE PENDING</p> </li> <li> <p>CREATE IN_PROGRESS</p> </li> <li> <p>ACTIVE</p> </li> <li> <p>CREATE FAILED</p> </li> <li> <p>CREATE STOPPING</p> </li> <li> <p>CREATE STOPPED</p> </li> </ul> <p>To get the status of the version, call <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolutionVersion.html">DescribeSolutionVersion</a>. Wait until the status shows as ACTIVE before calling <code>CreateCampaign</code>.</p> <p>If the status shows as CREATE FAILED, the response includes a <code>failureReason</code> key, which describes why the job failed.</p> <p class="title"> <b>Related APIs</b> </p> <ul> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_ListSolutionVersions.html">ListSolutionVersions</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolutionVersion.html">DescribeSolutionVersion</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_ListSolutions.html">ListSolutions</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_CreateSolution.html">CreateSolution</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeSolution.html">DescribeSolution</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/personalize/latest/dg/API_DeleteSolution.html">DeleteSolution</a> </p> </li> </ul>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}