To enable the scheduler logs follow below steps:
a. Create a folder called logs under the C: drive.
b. Edit both mercury.ini files located at:
1 - C:\Windows
2 - %localappdata%\VirtualStore (only if found)
c. Add the following lines and the end of each file:
d. Close all IE windows.
NOTE: the logs folder can be created in another location always it is fully accesible. If this is the case, update the LogFile value.