How To Fix UCD1071 - The reference period specified in the document is ambiguous

SAP Error Message - Details

• Message type: E = Error

• Message class: UCD1 - Messages for Document and Breakdown Check

• Message number: 071

• Message text: The reference period specified in the document is ambiguous

What causes this issue?

The reference period for determining the tax rate must be the same in
all document line items. This is not given in the current document.

System Response

The document cannot be posted.

How to fix this error?

Adjust the reference period or reference fiscal year.

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.