I have created a BAPI and added structure " zbapi_leave" in table table tab ( import , export, changing , tables).
this is currently in released state . Now one of the field length in structure " Zbapi_leave" needs to be changed .
when i try to change the first field length (seqnr), it throws an error while activation.
" BAPI-structure: invalid change: length of field SEQNR was changed" .
How can i increase the field lenth of the structure .