Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 756
Message text: For table &1, Drop Inserted is de-activated.
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 CNV20551756 indicates that the "Drop Inserted" option is deactivated for a specific table during a data migration or conversion process. This message typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer processes.
Cause: The error occurs when the system attempts to perform a data operation (like inserting data into a table) but finds that the "Drop Inserted" option is not enabled for that particular table. The "Drop Inserted" option is used to manage how data is handled during the migration process, specifically whether to drop existing data in the target table before inserting new data.
Solution: To resolve this error, you can take the following steps: Check Configuration Settings: Review the configuration settings for the data migration process. Ensure that the "Drop Inserted" option is enabled for the relevant table if you want to allow the dropping of existing
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20551755 For table &1, Drop Inserted is activated.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551754 For following &1 tables: &2, drop insert is checked. Save the entries.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551757 No Table changed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551758 Table &1 is changed & set as not use = '&2'
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.