Call up of feature PPMOD was not successful

What causes this issue?

Feature PPMOD has been called to set the employee grouping for account
determination. This call was unsuccessful.

System Response

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

How to fix this error?

Please check the decision tree for feature PPMOD.

Error message extract from SAP system. Copyright SAP SE.