Message type: E = Error
Message class:  VKKTAX - FS-CD: Messages for Insurance Tax 
Message number: 126
Message text: Multiple premiums for a tax item (payment plan item &1 &2 &3)
The system cannot uniquely determine the premium line for a tax line.
Multiple premium lines with the same combination of partner (GPART),
insurance object (VTREF), insurance tax schedule (INSTAXS), and tax
reference (TXPOS) exist for this tax line.
For this reason the system cannot determine the tax base amount for the
general ledger item of the tax line.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Create a payment plan item so that the assignment of a tax line to a
premium line is unique. You can ensure this with tax reference (TXPOS).
Error message extract from SAP system. Copyright SAP SE.
The SAP error message VKKTAX126 indicates that there are multiple premiums associated with a tax item in a payment plan. This typically occurs in the context of tax calculations where the system detects more than one premium for a specific tax item, which can lead to inconsistencies in the payment plan.
Cause: Multiple Premium Entries: The error is triggered when there are multiple premium entries for a single tax item in the payment plan. This can happen due to incorrect configuration or data entry. Data Duplication: There may be duplicate entries in the tax configuration or in the payment plan itself. Incorrect Tax Configuration: The tax settings in the system may not be properly configured, leading to multiple premiums being assigned to the same tax item.
Solution: Review Payment Plan Items: Check the payment plan items referenced in the error message (e.g., &1, &2, &3) to identify the specific tax items causing the issue. Look for
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