Message type: E = Error
Message class:  CNVA_20400_CHECK - Messages for contorlling areas checks 
Message number: 018
Message text: Controlling areas have the same settings for indicator 'all currencies'
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The SAP error message CNVA_20400_CHECK018 indicates that there is a conflict in the configuration of controlling areas regarding the currency settings. Specifically, it suggests that two or more controlling areas have been set up with the same settings for the indicator 'all currencies', which can lead to inconsistencies or issues during data processing or reporting.
Cause: The error typically arises in the following scenarios: Duplicate Configuration: Two or more controlling areas are configured to use the same currency settings, which can create ambiguity in financial reporting and data processing. Migration or Data Transfer Issues: If you are migrating data from one system to another or consolidating controlling areas, this error may occur if the currency settings are not properly aligned. Inconsistent Settings: The controlling areas may have been set up without proper consideration of their currency configurations, leading to conflicts.
Solution: To resolve this error, you can take the following steps: Check Controlling Area Settings: Go to the transaction
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