Using the Request Group of Resources feature, you can send a work request to Work Assignment to find a group of resources based on multiple attribute sets. While sending a work request, you must specify the total number of resources that you require for each attribute set in the group.

Work Assignment attempts to match a group of resources based on the attribute sets in the group. Work Assignment matches each resource for all attributes defined in the attribute set. After identifying the group of resources, Work Assignment reserves the resources and sends you the information of the resources. Using the information, you can assign the work to the group of resources.

If Work Assignment does not find the total number of required resources, Work Assignment notifies you with the WORK_UNFULFILLED response. Also, Work Assignment releases the other matching resources and cancels the request. For any retries, you must send a new work request.