The API service allows to reference other resources by their IDs. In this way you can, for example, add an attachment by its ID instead of uploading a file directly to the resource.


This error message will include the parameter field, that will contain the name of the parameter, for which the associated resource cannot be found.


  • The API service could not find the associated resource


  • Make sure, that the referenced resource still exists
  • Make sure, that you have permissions to access the referenced resource
  • Make sure, that the referenced resource is a valid resource for this action


    "status": 400,
    "errors": [
            "code": "ASSOCIATE_NOT_FOUND",
            "parameter": "user_id",
            "message": "The associated resource referenced by the field cannot be found",
            "more_info": ""