Message type: E = Error
Message class:  FINS_TAX_VETO_CHECK - Message for US tax config veto check 
Message number: 004
Message text: Change tax calculation procedure is not allowed.
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The SAP error message FINS_TAX_VETO_CHECK004 indicates that a change to the tax calculation procedure is not allowed in the current context. This error typically arises when there is an attempt to modify the tax calculation procedure for a document or transaction that is already in a state where such changes are restricted. Causes: Document Status: The document may already be posted or in a status that does not allow changes to the tax calculation procedure. Configuration Settings: The system configuration may restrict changes to the tax calculation procedure based on certain criteria, such as document type or company code. Tax Procedure Assignment: The tax procedure assigned to the company code or transaction may not allow changes once certain conditions are met. Legal Requirements: In some jurisdictions, once a tax document is posted, the tax calculation procedure cannot be altered due to legal compliance. Solutions: Check Document Status: Ensure that the document you are trying to modify is
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