Message type: E = Error
Message class:  ICC_CONDTAX - International Development: Condition-based tax calculation 
Message number: 063
Message text: You must assign a new tax group to tax group &1
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The SAP error message ICC_CONDTAX063, which states "You must assign a new tax group to tax group &1," typically occurs in the context of tax configuration in the SAP system. This error indicates that there is a missing assignment or configuration related to tax groups, which are used to determine how taxes are calculated for transactions.
Cause: Missing Tax Group Assignment: The tax group specified in the error message (&1) does not have a corresponding new tax group assigned in the system.
Configuration Issues: There may be a misconfiguration in the tax settings, particularly in the tax calculation procedure or tax condition records. Changes in Tax Regulations: If there have been recent changes in tax regulations or updates in the system, the existing tax groups may need to be reassigned or updated.
Solution: Check Tax Group Configuration: Go to the transaction code OBYZ (or the relevant configuration path) to check the tax group settings. Ensure that the tax
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