Hi all, can we write multiple service controller files in the Suitescript folder?

Yes, you can write multiple service controller files.

ok, but my service file is not triggering, getting an error like (Impossible to parse backend error ) and also I'm not getting Execution logs, Please help me on that.

This is because the path of your service file is Incorrect. Can you check the console and click on the link beside of that error and see the service path. The file It is looking might not be available in the folder.

The service file is there in the folder.

Are you using SS2 ?

No