Message type: E = Error
Message class:  VKKTAX - FS-CD: Messages for Insurance Tax 
Message number: 123
Message text: Tax Code for other taxes without insurance tax schedule
It is not permissible to post a document with the tax code for other
taxes (STRKZ) if an insurance tax schedule (INSTAXS) does not exist.
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 VKKTAX123 typically indicates that there is an issue with the tax code configuration in the system, specifically related to the handling of other taxes that do not have an associated insurance tax schedule. This error can occur during various transactions, such as when processing invoices or sales orders that involve tax calculations.
Cause: Missing Tax Code Configuration: The tax code being used does not have the necessary configuration for handling other taxes. Incorrect Tax Type: The tax type assigned to the tax code may not be appropriate for the transaction being processed. Tax Schedule Issues: The tax schedule for the specific tax code may not be set up correctly, or it may be missing entirely. Inconsistent Master Data: The master data for customers, vendors, or materials may not be aligned with the tax code requirements.
Solution: Check Tax Code Configuration: Go to the transaction code OBYZ (or use the path: SPRO > Financial Accounting
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