Is dot-walking is allowed in the sysparm_group_by query parameter when using Aggregate API?SummaryYes. Query parameters, such as sysparm_group_by, accept a field name or a comma-separated list of field names. Dot-walking is allowed in field names although you will not see their reference when using the REST API Explorer slushbucket when testing your Aggregate API. You will need to manually input the dot-walked field reference for the sysparm_group_by query parameter's value in the REST API Explorer.