I was attempting to make use of the Day Scheduling View without success and no idea why.
There is something missing in both documentation and the tooltip.
“This field is used with scheduling views. This should be a reference on the grouping model specified in the Scheduling View.”
Should read: "“This field is used with scheduling views. This should be a reference to the Id field on the grouping model specified in the Scheduling View.”
I was attempting to use another model where I had a reference field to the user called To_Firm__c, but this can’t be used since the code looks up the Id field.