I am gettinga error msg when deleting the already created field and changing it to primary key
TABL ZCUSTEMAIL was not activated
Check table ZCUSTEMAIL
New or non-key field EMAIL_ID is now key field
Field EMAIL_ID is "NOT NULL"
ALTER TABLE is not possible
Structure change at field level (convert table ZCUSTEMAIL)
Check on table ZCUSTEMAIL resulted in errors
End of activation of worklist
this is ther procedure told in it
Message no. DT 064
The structure of the table changed at field level. This change requires a conversion of the table. This situation can occur for example if the data type or field length of the domain upon which the field is based was changed. A conversion is also generally necessary if the key of the table changed.
Convert the table using the Database Utility (SE14).
but i dont have authorization for se14