Message type: E = Error
Message class:  /ATL/PCN874 -  
Message number: 009
Message text: Err - VAT reg. no is not maintained
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The SAP error message /ATL/PCN874009 Err - VAT reg. no is not maintained typically indicates that a VAT registration number is required for a specific transaction or process, but it has not been maintained in the system for the relevant business partner or customer.
Cause: Missing VAT Registration Number: The most common cause is that the VAT registration number has not been entered for the customer or vendor in the master data. Incorrect Configuration: The system may be configured to require a VAT registration number for certain transactions, and if it is not provided, this error will occur. Data Migration Issues: If data was migrated from another system, the VAT registration numbers may not have been transferred correctly. Country-Specific Requirements: Some countries have specific requirements for VAT registration that must be fulfilled before transactions can be processed.
Solution: Maintain VAT Registration Number: Go to the relevant master data (Customer or Vendor) in SAP. Navigate to the VAT registration number
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