Message type: E = Error
Message class:  CNV_10210 - NCE: CWB Interface 
Message number: 103
Message text: &1 mapping values found
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message CNV_10210103 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a mapping issue with the values being transferred from the source system to the target system.
Cause: The error message CNV_10210103 suggests that the system has encountered a situation where it cannot find a corresponding mapping for a value in the source data. This can happen due to several reasons: Missing Mapping Entries: The value in the source data does not have a corresponding entry in the mapping table or configuration. Incorrect Data Format: The data format in the source system may not match the expected format in the target system. Data Inconsistencies: There may be inconsistencies or errors in the source data that prevent successful mapping.
Configuration Issues: The mapping configuration may not be set up correctly, leading to missing or incorrect mappings.
Solution: To resolve the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10210102 &1 number range mapping values found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10210101 Check routine started for package &1
What causes this issue?  Package &V1& is associated to NCE ID &V2&.System Response  The system issues an error message and will not al...
CNV_10210104 Check routine found no errors
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10320000 &1 &2 &3 &4
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.