Message type: E = Error
Message class:  SV - View Maintenance: Customize Messages 
Message number: 395
Message text: You are in the edit function group
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 SV395, which states "You are in the edit function group," typically occurs when a user attempts to execute a transaction or function that is not allowed while in the edit mode of a function group. This is often related to the development environment in SAP, particularly when working with ABAP programs or function modules.
Cause: Edit Mode: The user is currently in the edit mode of a function group or program. In this mode, certain transactions or operations are restricted to prevent inconsistencies or errors. Locking Mechanism: SAP has a locking mechanism to ensure that changes are not made to objects that are currently being edited. This is to maintain data integrity and avoid conflicts.
Solution: Exit Edit Mode: To resolve this error, you need to exit the edit mode. You can do this by: Saving your changes if you want to keep them. If you do not want to save changes, you
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SV394 The screen number & is reserved
What causes this issue?  The screen number &V1& lies in the range reserved (1000 - 1010) for the ABAP/4 selection screens.System Response  The...
SV393 Maintenance screen & will be deleted and re-created
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SV396 You are in table/view editing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SV397 System error: Function group & could not be locked
What causes this issue?  Lock administration system error. The requested data could not be locked.System Response  The system issues an error message ...
Click on this link to search all SAP messages.