Partner(s) is(are) not found - Quality collaboration

Hello All,

I'm trying to transfer a quality notification from ECC to SNC and the following error is occuring in SNC-XML:

Quality notification 200000633 contains no items 008(/SCA/BIF_QUALITY)

Partner(s) is(are) not found 011(/SCA/DM_MDL)

Party 3000 is not maintained 085(/SCA/BIF_MI)

SPRO >> SNC >> Basic Settings >> Processing Inbound and Outbound Messages >> Process Types for Inbound Messages >> Assign Sender- and Recipient-Dependent Process Types (Inbound)

Is there anything else that I have to check?

I'll appreciate your help.

Thanks,

Alberto.