Message type: E = Error
Message class:  FIRU_VAT - VAT Russia S/4HANA 
Message number: 006
Message text: You cannot reference this document in the document itself
You entered "COR^NNNNNNNNYYYY" in the header text of document with
number NNNNNNNN (field BKTXT). You cannot reference this document in the
document itself.
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.
The SAP error message FIRU_VAT006, which states "You cannot reference this document in the document itself," typically occurs in the context of financial transactions, particularly when dealing with VAT (Value Added Tax) documents. This error indicates that there is an attempt to reference a document in a way that is not allowed by the system's rules.
Cause: Self-Referencing: The most common cause of this error is that the document is trying to reference itself. For example, if you are trying to create a document that refers back to itself, SAP will not allow this. Incorrect Document Flow: The document may be part of a sequence where the flow of documents is not correctly maintained, leading to an invalid reference.
Configuration Issues: There may be configuration settings in the SAP system that restrict certain types of document references.
Solution: Check Document References: Review the document you are trying to create or modify. Ensure that it does not
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