Message type: E = Error
Message class:  FIRU_OFFS_ACCOUNT - offsetting account determination S4/HANA 
Message number: 009
Message text: Offsetting accounts for the document items were determined by FIFO
The system determined the offsetting accounts using the FIFO (first in -
first out) process.
In the FIFO process the system takes the first document item and carries
out correspondence for it with the first opposite item (debit item
corresponds with credit, credit item corresponds with debit), then the
system does the same for the remaining document positions. During this
process, the system disregards preferred and forbidden account pairs.
This guarantees that the document will be posted successfully but does
not guarantee that the correspondence is correct.
The FIFO process is only used if the system could not carry out
correspondence using the rules in your Customizing activity Maintain
Offsetting Account Correspondence Versions and if you have selected the
<ZK>Process by FIFO </>option.
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_OFFS_ACCOUNT009 indicates that the system has determined offsetting accounts for document items using the FIFO (First In, First Out) method. This message typically arises in the context of financial transactions, particularly in inventory management or when dealing with materials that have a cost flow assumption based on FIFO.
Cause: FIFO Valuation Method: The error occurs when the system is trying to process a transaction that involves inventory items valued using the FIFO method, but it cannot find the appropriate offsetting accounts for the document items.
Configuration Issues: There may be a configuration issue in the financial accounting settings or in the material master data that prevents the system from determining the correct offsetting accounts. Missing Account Determination: The account determination settings for the relevant transaction type may not be properly configured, leading to the inability to find the necessary offsetting accounts.
Solution: Check Account Determination: Go to the configuration settings for account determination
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