Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 619
Message text: &1: Scenario: Controlling area deletion. Nothing to do!
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 CNV20551619 typically occurs during the process of deleting a controlling area in the SAP system. This error indicates that there are still dependencies or references to the controlling area that prevent its deletion. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Existing Dependencies: The controlling area may still have active assignments or dependencies, such as: Open periods in controlling (CO) or financial accounting (FI). Active cost centers, profit centers, internal orders, or other CO objects linked to the controlling area. Existing transactions or postings that reference the controlling area. Configuration Settings: Certain configuration settings or parameters may prevent the deletion of the controlling area. Data Integrity Constraints: SAP enforces data integrity, and if there are any inconsistencies or references, it will not allow the deletion.
Solution: Check Dependencies: Use transaction codes like KAH1 (for cost centers), KSB1 (for cost center reports), or KOB1 (for order reports) to check for any existing
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20551618 &1: No NRIV entries for &2 and relevant subobj. found. Nothing to do!
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551617 No master data with conflict are found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551620 For OTYPE=&1: &2=&3 : Org. assignment not possible
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551621 For OTYPE=&1: &2=&3 : Conflict regarding org assignment
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.