Message type: E = Error
Message class:  CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO) 
Message number: 231
Message text: Error with table &1 in system &2
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_CMIS_A_20231 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP Conversion Management Information System (CMIS). This error indicates that there is a problem with a specific table (&1) in the specified system (&2).
Cause: The error can be caused by several factors, including but not limited to: Data Integrity Issues: There may be inconsistencies or invalid data in the specified table that prevent the migration process from completing successfully. Configuration Problems: Incorrect configuration settings in the migration tools or the source/target systems can lead to this error. Missing Dependencies: The table may have dependencies on other tables or objects that are not met, leading to errors during the migration. Authorization Issues: The user executing the migration may not have the necessary permissions to access or modify the specified table.
Solution: To resolve the CNV_CMIS_A_20231 error, you can take the following steps: Check Data Integrity: Review the data in the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_CMIS_A_20230 Table-field selected for getting fieldlist &1 &2.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_A_20228 Check content: Missing key field found in table &: relevant
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_A_20232 Error generating report for table &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_CMIS_A_20233 Dictionary information refreshed for package &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.