Message type: E = Error
Message class:  CNV_DMC_SIN_AM - Messages for Business Address Services 
Message number: 743
Message text: The P.O. box postal code &1 must have a length of &2 or &3
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 CNV_DMC_SIN_AM743 indicates that there is an issue with the postal code format for a P.O. Box in the system. Specifically, it states that the postal code must have a length of either a specified value (&2) or an alternative value (&3). This error typically arises during data migration or data entry processes, particularly when dealing with addresses that include P.O. Box information.
Cause: Incorrect Postal Code Length: The postal code entered for the P.O. Box does not match the expected length defined in the system configuration. This could be due to: A typographical error when entering the postal code. The postal code being formatted incorrectly (e.g., including extra characters or spaces). The postal code not conforming to the local postal code standards. Data Migration Issues: If this error occurs during a data migration process, it may be due to the source data not adhering to the required format or length.
Solution: Verify Postal Code:
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