i am trying to add a custom fields in transaction AS01. For this i implemented one enhancement AIST0002 . In this enhancement i implemented one function exit EXIT_SAPLAIST_002. In this exit i maintained some code in include ZXAISU03.In this the data trasfering in parameter i_anlu to a screen. when i am activating this include i am getting 'ANLU has already declared'.
Can any one please suggest me how can i solve this problem.