MB1B Serial numbers Validation

[former_member547429]

I am looking for user exit/BADI to validate serial numbers entered on MB1B transaction during movement type 301. I see MB_DOCUMENT_BADI but the BADI does not have serial number as parameters. Has anyone worked on a similar requirement earlier to read serial numbers entered on MB1B? My requirement is to validate and raise error message on MB1B tcode.

[former_member547429]

Have anyone worked on a similar requirement, please share any pointers which are useful.