In MP, users can only get assigned to roles (on activity/project level) via the user interface, and this is only supported for full users. There is an upcoming feature that will also allow contributors to also assign users to roles in a task. But still, in many cases the parameters entered in the request form (e.g. division, brand, type of activity, type of creation (photo vs video production),...) is already sufficient to determine who is responsible (e.g. by querying external data sources). It is often difficult for the contributor to find out exactly who is responsible for what (e.g. who is the designer responsible for video creations? who is the legal reviewer for brand X?).
This Voice request is to make it possible to assign users to roles on activity or project level via the MP REST API. After submitting a request form, a workflow can in that way use a webhook to determine responsibles users and assign them to the correct roles before continuing the workflow.
Customer support service by UserEcho