The sequence of F4 for field:
Sequence or you can say the priority:
- Search help of fields
- when no search help, display f4 with the help of a foreign key table
- when no search help and no foreign key, display the data element’s search help
- when no search help and no foreign key, no data element’s search help and shows fixed values (you defined in value range in the domain)
Search help of fields – when you create search help in se11, you define the field in which you want f4 help, this is search help on fields.
Search help on data elements – you apply for search help on data elements (data element>further characteristics tab), and it asks you for
Name – search help
Parameter – field name
Explain with diagram
Search help of fields: when you apply for search help on a field by clicking the search help button (priority 1).
Display f4 with the help of a foreign key table: when you apply for a foreign key(FK) on a field by clicking the foreign key button.
After the foreign key is established, a search help comes through the check table(priority 2)
Data element’s search help: It comes from data element search help(priority 3).
Search Help through fixed values: If you define the fixed values in the domain value range, it works as f4 help (priority 4).