MM - No messages in the PO for a user = can't print

Hi,

I created a new purchasing group (OME4) and I assigned a printer for messages (OMGF) to this group.

In our company, a purchasing group = a single user. This user is not able to print a PO using ME9F.

We realize that when this user is in the PO, he sees nothing once he clicked on the «message» button. He is supposed to see 2 messages (NEU and ZNEU).

Any idea how I can assign these messages manually?

Thanks,

Julien