From within GPOAdmin console right-click the domain and choose options.
From the options menu go to:
Logging > Configuration
Under Log location, tick File System Folder and specify a folder path in which you want to store the log file.
Tick Debug Information
If GPMC logs are needed as well tick the
Enable Group Policy Management Console Logging and set the level to verbose
The GPMC logs "GPmgmtManaged.log" and "GPmgmt.log" are stored in the %temp% directory of the service account.
After enabling debug mode go to windows event viewer and expand Applications and Services Logs
Right-click GPOAdmin and choose save all events as
Save in evtx format and choose
Tick display information for these languages and chose English
From the location where you save the logs collect and send both the .evtx file and the LocaleMetaData folder.