Message type: E = Error
Message class:  CNV_20306_CHECK - Message Class for package CNV_20306_CHECK 
Message number: 003
Message text: No relevant object keys found; profile execution not possible
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_20306_CHECK003: No relevant object keys found; profile execution not possible typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system could not find any relevant object keys in the specified profile, which prevents the execution of the migration or conversion process. Causes: Missing Object Keys: The most common cause is that the object keys required for the migration are not present in the source system or the specified profile. Incorrect Profile Configuration: The profile used for the migration may not be correctly configured or may not correspond to the data being migrated. Data Selection Issues: The selection criteria defined in the migration profile may not match any records in the source system. Authorization Issues: Lack of proper authorizations to access the required data can also lead to this error. Technical Issues: There may be underlying
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20306_CHECK002 Source controlling area 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_20306_CHECK001 Controlling area change: Source &1 to &2 (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_20306_CHECK004 No mapping provided
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20306_CHECK013 No priority provided for target controlling area &1
What causes this issue?  No priority indicator specified for the target controlling area &V1&. This can lead to inconsistencies during the con...
Click on this link to search all SAP messages.