I want to count the number of child objects in a lookup (not master-detail) relationship. Since no rollup-summary (COUNT) fields are supported I thought I would do this:
Which fails with
Error: Field $ObjectType.MyObj__c does not exist. Check spelling.
I'm guessing the real problem is that SF doesn't support
GETRECORDIDS in formula fields but I would like to be wrong about this.
Any better ideas aside from triggers?