Hi All, How can we lock the Extensions like Netsuite Extensions.

This is available through the SDF developer tools

As Steve mentioned you can do this using SDF. So if you are using SDF you can set up installation preferences to do the following: • Locking Custom Objects in an SDF SuiteApp Project • Hiding Files in an SDF SuiteApp Project • Locking Files in an SDF SuiteApp Project

Thanks for the information. I'm currently referring SDF document. Where do you think i can start from?

In NS help center search for SDF Project Types

Thank you for your valuable suggestions @Steve Goldberg and @Flo

you are welcome