What causes this issue?

For this requirement, outgoing documents are not defined in
Customizing.

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?

Contact your system administrator.

Procedure for System Administrators

Define outgoing documents for the specific requirement. in the
Customizing activity <ZK>Product Compliance -> General Configuration ->
Compliance Object -></><ZH><ZK>Specify Checks for Compliance Requirement
and Check Criteria</>.</>

Error message extract from SAP system. Copyright SAP SE.