Message type: E = Error
Message class:  IDFI_VAT_PR - VAT Pro-Rata 
Message number: 034
Message text: Adjustment option transaction keys of MM must be filled
You selected Adjustment Option parameter "Exclude MM invalid transaction
keys", but didn't define values for "Valid transaction keys from MM".
All transaction keys from MM will be considered valid. No lines will be
excluded.
Check parameters "Exclude MM invalid transaction keys" and "Valid
transaction keys from MM".
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 IDFI_VAT_PR034 indicates that there is an issue with the adjustment option transaction keys in the Materials Management (MM) module related to VAT (Value Added Tax) processing. This error typically arises when the system expects certain transaction keys to be filled in for VAT adjustment but finds them missing or incorrectly configured.
Cause: Missing Configuration: The adjustment option transaction keys for VAT may not be configured in the system. Incorrect Transaction Key: The transaction keys that are being used may not be valid or appropriate for the specific VAT adjustment being processed. Data Entry Error: There may be a data entry error where the required fields are left blank or filled incorrectly.
Solution: Check Configuration: Go to the configuration settings for VAT in the SAP system. This can typically be found under the following path: SPRO > Financial Accounting > Tax on Sales/Purchases > Basic Settings > Check Transaction Keys. Ensure that the adjustment option transaction
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