How To Fix UCFP009 - Source document type cannot be initial

SAP Error Message - Details

• Message type: E = Error

• Message class: UCFP - Messages for Period Initialization

• Message number: 009

• Message text: Source document type cannot be initial

What causes this issue?

The Customizing entries in the document type assignment for the
adjustment of deferred taxes may not contain initial source or target
document types.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.