I am using SAP8.82
I have created screen painter with 5 fields through UDT , UDF.
5 fields is :
I want to restrict nobody can update code field if once enter , if tankno field is empty then code should be update but if tankno field is assigned then code should be restricted.
I have used all the techniques but in SP NOTIFICATION when i write the query it has been restricted all the fields not only code . I want jus restrict code fields
if tankno has somedata.
I am not using SDK.