Message type: E = Error
Message class:  CNV_DMC_SIN_AM - Messages for Business Address Services 
Message number: 668
Message text: &4:There must be a number in place &2 of company postal code &1
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_DMC_SIN_AM668 typically indicates an issue with the postal code format in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. The error message suggests that a specific position in the postal code is expected to contain a numeric value, but it does not.
Cause: Incorrect Postal Code Format: The postal code provided does not conform to the expected format, which may require certain positions to be numeric. Data Entry Error: There may have been a typographical error when entering the postal code. Data Mapping Issues: If the data is being migrated from another system, the mapping of postal code fields may not be correctly defined, leading to format discrepancies.
Configuration Issues: The system may not be configured to accept the postal code format being used.
Solution: Check Postal Code Format: Verify that the postal code in question adheres to the expected format.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_DMC_SIN_AM667 &4:There must be a number in place &2 of P.O. box postal code &1
 INCLUDE AM667 OBJECT DOKU ID NA LANGUAGE ENError message extract from SAP system. Copyright SAP SE. ...
CNV_DMC_SIN_AM666 &4:There must be a number in place &2 of the postal code &1
 INCLUDE AM666 OBJECT DOKU ID NA LANGUAGE ENError message extract from SAP system. Copyright SAP SE. ...
CNV_DMC_SIN_AM669 &4:There must be a letter in place &2 of the postal code &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_SIN_AM670 &4:There must be a letter in place &2 of P.O. box postal code &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.