Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 096
Message text: Elementary relationship &1: Error during program generation
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_10020096, which indicates "Elementary relationship &1: Error during program generation," typically arises during the execution of a conversion program or data migration process in SAP systems, particularly in the context of SAP S/4HANA migrations or data conversions.
Cause: Data Inconsistencies: The error may occur due to inconsistencies in the data being processed. This could include missing or incorrect entries in the source data that do not meet the expected format or constraints.
Configuration Issues: There may be issues with the configuration settings related to the conversion program or the specific data model being used. Program Logic Errors: There could be bugs or logical errors in the custom code or standard program that is being executed. Missing Dependencies: The program may rely on certain objects (like tables, views, or other programs) that are not available or not properly defined in the system.
Solution: Check Data Consistency: Review the data being processed for any inconsistencies
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10020095 Created program contains syntax errors (error information by Ctrl-F2)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020094 Created program is syntactically correct
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020097 &1 &2: Spec. framework program &3 does not exist
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020098 Elementary relationship &1: Spec. function module &2 has wrong interface
What causes this issue?  Specific function module &V2& has been assigned for mass determination to elementary relationship &V1&. Howev...
Click on this link to search all SAP messages.