Message type: E = Error
Message class:  CNV_40301 - Message class for package 40301 (KTOGR) 
Message number: 013
Message text: No data was loaded
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_40301013: No data was loaded typically occurs during data migration processes, particularly when using SAP's data migration tools such as the SAP S/4HANA Migration Cockpit or other data transfer methods. This error indicates that the system did not find any data to load into the target system. Causes: Empty Source Data: The source system may not have any data in the specified tables or structures that are being migrated. Incorrect Selection Criteria: The selection criteria or filters applied during the data extraction may be too restrictive, resulting in no data being selected. Mapping Issues: There may be issues with the mapping of fields between the source and target systems, leading to data not being recognized or loaded. Technical Issues: There could be technical issues such as connectivity problems, authorization issues, or configuration errors in the migration tool. Data Transformation Errors: If there are transformation rules applied to the data, they may be
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_40301012 &1 Data records imported and saved in database
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_40301011 No data were loaded! Possible reason: EXCEL is open
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_40301014 Upload error occurred
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_40301015 No format errors determined
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.