The field does not have FMS.
The scenario is as below : -
I have inserted the below FMS on a UDF on the delivery notes called U_Staff_Name and set it to show the name on staff when the cost centre Staff code is selected. When the staff code is selected nothing happens I have to manually click on the FMS icon.
However when I set it to change on the delivery date field on the rows it refreshes immediately this field changes.
FMS
SELECT T0.[PrcName] FROM OPRC T0 WHERE T0.[DimCode] = 3 and T0.[PrcCode] = $[$38.2002.1]