Message type: E = Error
Message class:  CNV_DMC_HC -  
Message number: 079
Message text: Settings are being edited by &1
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 CNV_DMC_HC079 indicates that a particular setting or configuration is currently being edited by another user or process. This is a common issue in systems where multiple users may be trying to access or modify the same settings simultaneously.
Cause: Concurrent Access: Another user or process is currently editing the settings, which locks the configuration for other users. Session Timeout: A previous session may not have been properly closed, leaving the settings in a locked state. System Locking Mechanism: SAP has a locking mechanism to prevent data inconsistencies, which can lead to this error if another session is active.
Solution: Wait and Retry: If another user is editing the settings, wait for them to finish and then try again. Check Active Sessions: Use transaction codes like SM12 to check for active locks in the system. If you find a lock that is no longer valid (e.g., from a user who has logged off), you
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_DMC_HC078 Not authorized to edit settings
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_HC077 No changes have been made; no data saved
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_HC080 E-mail ID &1 is invalid
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_HC081 Warning value &1 cannot be higher than error value
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.