Message type: E = Error
Message class:  CNV20200 - Messages for development class CNV_20200 
Message number: 285
Message text: Table &1 initialized for package &2 and table &3 and GL_SIRID in &4
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 CNV20200285 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that a table has been initialized for a particular package, but there may be issues with the data or configuration.
Cause: Initialization Issues: The error suggests that the specified table (&1) has been initialized for the package (&2) and table (&3), but there may be inconsistencies or missing configurations related to the GL_SIRID in the specified context (&4). Data Migration Problems: It could be due to problems in the data migration process, such as missing data, incorrect mappings, or issues with the source data. Configuration Errors: There may be configuration issues in the system that prevent the proper initialization of the table or the migration of data.
Solution: Check Initialization: Verify that the initialization of the table has been completed successfully. You may need to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20200284 CNVRENAME initialized for package &1 and DOMNAME=DOCNR and table &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200283 No AO object numbers need to be converted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200286 Parameter: P_DOCNR1=&1, P_DOCNR2=&2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20200287 & data records in CNVRENAME were added for DOMNAME=DOCLN
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.