How To Fix 5D811 - Tax class was changed to 6

5D811 - Overview

• Message type: E = Error

• Message class: 5D - Error Messages for German Infotype Module Pools

• Message number: 811

• Message text: Tax class was changed to 6

What causes this issue?

According to section 124 of the Income Tax Laws, employees who fail to
hand over their tax card will have their tax class set to 6. In
addition, employees who are liable to unrestricted taxation, have the
tax-exemption for children set to 0.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message 5D811 - Tax class was changed to 6 ?

  The SAP error message "5D811 Tax class was changed to 6" typically occurs in the context of tax classification in the SAP system, particularly when dealing with sales and distribution (SD) or materials management (MM) modules. This error indicates that the tax classification for a material or customer has been changed to a tax class that is not valid for the current transaction or configuration.
  
  Cause:
  
  Tax Class Configuration: The tax class for a material or customer may have been changed in the system, and the new tax class (6) is not configured properly in the tax determination settings.
  Master Data Issues: The master data for the customer or material may not be aligned with the tax configuration, leading to inconsistencies.
  Transaction Type: The transaction being processed may not support the new tax class, leading to the error.
  Country-Specific Regulations: Changes in tax regulations or settings for specific countries may also lead to this error