| Dunning procedure could not be determined

What causes this issue?

A dunning group contains items with different dunning procedures. The
dunning program has therefore run event 0307. However, this event has
not returned any dunning procedure.
The dunning group contained a line item for business partner &V1& and
contract account &V2& from document &V3&.

System Response

The dunning group is not included in the dunning proposal.

How to fix this error?

Define the field MAHNV in the grouping categories or define an
installation-specific function module for event
<DS:FU.FKK_SAMPLE_0307>0307</>.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.