Diagnosis
The address (name: &V3&) being used as selected partner address foralternative invoice recipient &V4& in contract account &V1& withpartner &V2& was deleted in the business partner.

Procedure
Using the pushbutton account, go to the maintenance of contract
account &V1&. From here, select a different address for alternativeinvoice recipient &V4&, and apply the changes. We recommend that youselect the standard address for the alternative invoice recipient inthe contract account instead of a specific address. The advantage ofthis is that whenever you make a change to the business partneraddress, the standard address is also used automatically in thecontract account.
These changes are then saved when you save the current businesspartner.