Message type: E = Error
Message class:  CNV_OR_ANA2 - Analysis: Message Class 
Message number: 004
Message text: Start table analyzing,task number is &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_OR_ANA2004 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is an issue with the analysis of a start table, which is a critical step in the data migration process.
Cause: The error message CNV_OR_ANA2004 can be caused by several factors, including: Data Quality Issues: The data in the source system may not meet the required quality standards, such as missing mandatory fields, incorrect data formats, or invalid values.
Configuration Issues: There may be configuration problems in the migration cockpit or the related settings that prevent the analysis from completing successfully. Technical Issues: There could be technical issues such as database connectivity problems, insufficient authorizations, or system performance issues. Incompatibility: The version of the source system or the data model may not be compatible with the target system.
Solution: To resolve the CNV_OR_ANA2004 error, you can take the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_OR_ANA2003 Stop &1 analyzing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_OR_ANA2002 Start &1 analyzing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_OR_ANA2005 Stop table analyzing,task number is &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_OR_ANA2006 No configuration information
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.