Message at MIGO transaction

Hi Gurus,

I am using a BADI MB_DOCUMENT_BADI implementation.

At the MB_DOCUMENT_BEFORE_UPDATE method, I am doing a call transaction at VT02N.

I need put one message at MIGO transaction, that shows when VT02N call transaction was not succesfull.

This badi doesn't have any returm messages parameters.

Does anyone knows how can I return those messages to MIGO?

I think that I can use EXPORT TO MEMORY, but I don't know where can I import and use.

Thank you all.