I want changes to detail objects to trigger a workflow on the master object.
The master object has a rollup summary field which COUNTs how many detail objects have a certain field set. When I change a detail object, the formula field on the master is changed to reflect this but this "change" to the master object's formula field does not seem to trigger the workflow.
I guess I could make a trigger on the detail object which does a dummy update on the master but this seems inelegant. Workflows apparently don't get triggered by changes to rollup-summary fields - is there a better way?