modify MB25 and add a new selection field

Hello All,

I need to copy MB25 to ZMB25 and add field to the selection screen and modify the select statement further. MB25 uses a LDB and I am never used LDB. Please help me how to do this and post some notes on LDB as I have lot of questions.

<b>FYI:</b> I made a Z copy of the program and in the program attributes, I see a LDB. I made a Z copy of the LDB and added a selection field. I donno if that is the right way or not. I am also not sure where to modify the selection based on the newly added selection field.

Thanks in advance

Chandni Reddy