Message type: E = Error
Message class:  CNV20201 -  
Message number: 053
Message text: Number levels for & are determined via the respective value table
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 CNV20201053 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 is unable to determine the number of levels for a specific field or entity because it relies on a value table that is not properly configured or accessible.
Cause: Missing Value Table: The value table that is supposed to provide the necessary information for the field is missing or not defined in the system. Incorrect Configuration: The configuration for the data migration might not be set up correctly, leading to the inability to retrieve the required levels. Data Inconsistencies: There may be inconsistencies or issues with the data being migrated, which could prevent the system from determining the levels. Authorization Issues: The user executing the migration may not have the necessary authorizations to access the value table or related data.
Solution: Check Value Table Configuration:
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20201052 &1 &2 &3 &4: Lower limit < and upper limit > than all limits in NRIV!
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20201051 &1 &2 &3: Upper limit &4 > than all upper limits in NRIV!
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20201054 Old mapping for package &1 and domain &2 was deleted from CNVRENAME.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20201055 Mapping table was maintained incorrectly for: &1, &2, &3, &4
What causes this issue?  The maintenance table CNVRNMB is maintained incorrectly for the following: &V1&, &V2&, &V3&, &V4&...
Click on this link to search all SAP messages.