Message type: E = Error
Message class:  CNV20200 - Messages for development class CNV_20200 
Message number: 460
Message text: Parameter CNV_20200_J_OBJNR_NOT_RELEVANT = X was set
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 CNV20200460 with the parameter CNV_20200_J_OBJNR_NOT_RELEVANT = X typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the object number (OBJNR) is not relevant for the specific migration scenario you are working on.
Cause: Incompatibility of Object Type: The object number you are trying to migrate may not be applicable for the migration scenario you are using. This can happen if the object type is not supported or if it is not relevant for the target system.
Configuration Issues: There may be configuration settings in the migration tool that are not aligned with the data you are trying to migrate. Data Quality Issues: The data being migrated may have inconsistencies or may not meet the required criteria for the migration process.
Solution: Check Migration Object: Verify that the object you are trying to migrate is indeed relevant for the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20200459 Depreciation posting periods of involved company codes differ
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200458 &1: in CNVFIELDSCU added with ReadOnly indicator set
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200461 RFBLG cluster table &1 will be processed before RFBLG cluster
What causes this issue?  RFBLG cluster table &V1& will be processed before RFBLG cluster. The associated settings are added. &V1& must...
CNV20200465 DOMNAME=&1: Source value not defined: &2
What causes this issue?  DOMNAME=&V1&: The following source value is not defined: &V2& &V2& is missing in the value table &...
Click on this link to search all SAP messages.