You have developed a program in the SAP system and you do not want other users to change or perform any editing activities to your program.
Solution
In the transaction code SE38. Enter your program name and select Attributes under the Subobjects. Click on Change.
Check the Editor lock option. Save and active the program again.
To verify, ask other user to perform the change on the source code program. The editing will be terminated with below error message.
