Outgoing IDoc for incoming goods

Hello everybody,

I have a question about incoming good IDocs. So far, I am not very familiar with the subject, so i hope you can help me here.

I want to know which Base-Idoc is used to forward the good receipt of a purchase order to a partner and how to set the message to be sent. So when we confirm the receipt of goods from a supplier via MIGO, a message should be sent to our partner. Is that possible?

My idea was to use the IDoc type WMMBXY with the base type WMMBID02. However, I wasn't able to send a message.

Am i on the right track with my idea?

Thank you for your help an best regard,

Fabian