System is generating an outbound Shipment Notice(ASN) for customers who are not enabled from CMK

Hi Team, We have configured CMK for Advance Shipment Notice Outbound. However, per the client’s request, the configuration was applied only to the customer intended to receive it. During testing, we identified that the notice was also being generated for other customers in failed status saying that it could not find the external Partner mapping. Relevant screenshots are attached. Had any one faced this issue before