Message type: E = Error
Message class:  CNV20200 - Messages for development class CNV_20200 
Message number: 342
Message text: &1 contains no relevant data for object type SK
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 CNV20200342 indicates that a specific object type, in this case, SK (which typically refers to a "sub-structure" or "sub-object" in the context of data conversion or migration), does not contain any relevant data during a data migration or conversion process. This error is often encountered in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion projects.
Cause: No Data Available: The primary cause of this error is that there is no data available in the source system for the specified object type (SK). This could be due to: The object type not being used in the source system. Data not being extracted or migrated properly from the source system. Filters applied during the migration process that exclude relevant data.
Configuration Issues: There may be configuration issues in the migration settings that prevent the system from recognizing or processing the data for the specified
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20200341 &1 contains relevant data for object type SK
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200319 No header record with KUKEY=&1 found in FEBKO; HKTID not converted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200357 CNVSTPARS entry for prio routine CNV_20200_PRIO_KNKK not found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200358 Different currencies for recommended credit limit for KUNNR=&1: &2 &3
What causes this issue?  Different currencies of credit control areas for the recommended credit limit of a customer.System Response  Warning message....
Click on this link to search all SAP messages.