Message type: E = Error
Message class:  FKK_ID_XX_SAFT - SAFT message 
Message number: 051
Message text: No &1 Invoices are extracted in period &2; XML files will not created
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The SAP error message FKK_ID_XX_SAFT051 indicates that there are no invoices extracted for a specified period, which results in the system not creating XML files. This error is typically related to the SAP Convergent Charging or SAP Convergent Invoicing modules, particularly in the context of generating XML files for the Standard Audit File for Tax (SAFT) reporting.
Cause: No Invoices in the Specified Period: The most common cause of this error is that there are simply no invoices generated or available in the specified period for extraction. Incorrect Period Selection: The period specified for extraction may not align with the actual invoicing periods in the system. Data Processing Issues: There may be issues with data processing or configuration that prevent invoices from being generated or recognized.
Configuration Issues: The configuration settings for the SAFT extraction process may not be set up correctly, leading to no data being available for extraction.
Solution: Check Invoice Data: Verify that there
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