Message type: E = Error
Message class:  CNV_DMC_SIN_AM - Messages for Business Address Services 
Message number: 685
Message text: Use only digits in places &2 to &3 of the P.O. box postal code &1
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_AM685 indicates that there is an issue with the postal code format in a specific field, particularly in the context of a P.O. box postal code. The error message specifies that only digits should be used in certain positions of the postal code.
Cause: The error typically arises when the postal code entered in the system contains invalid characters or formats. Specifically, it suggests that the characters in positions &2 to &3 of the postal code &1 are not digits. This could happen due to: Incorrect Data Entry: Users may have mistakenly entered letters or special characters in the postal code field. Data Migration Issues: If data was migrated from another system, it may not conform to the expected format. System Configuration: The system may have specific validation rules that are not being met by the entered data.
Solution: To resolve this error, you can take the following steps: Check the Postal Code Format:
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