Material offset account key not maintained for settlement doc type &1

What causes this issue?

Inconsistent Customizing settings for settlement document type &V1&.

System Response

INCLUDE ISR_VERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

Depending on the setting of the source of the account key in the
settlement document type, you have to maintain the account key:
From Settlement Document Type: In Customizing for
<DS:SIMG.W_WLFA_0004>Settlement Document Types</> enter an account key
for the offset account material adjustment for settlement document type
&V1&.
From Pricing Procedure: Maintain the account key as account key for
accruals in the relevant condition types of the pricing procedure.

Error message extract from SAP system. Copyright SAP SE.