Can we disabled Import and Export Button?

I don't believe you can. Interested to know why you'd want to. If you have issues with people updating stuff they shouldn't - then restrict their access to the system they are importing too, and implement a proper change control system ?

Thanks for the reply pauls.
The main objective of this is planning to give only the designer access for the vendor's and disabled the import/export application/patch functionality.
All the deployment process should go through by us with only one system administrator account, Also we can include the deployment steps[Use only one Deployment user account] in the process
and ask them to follow the process but at the same time plan to disable the Import/Export access for them.

Thanks!!

hmmmm why not just give them the command line option ?

Hi Pauls, Can I know what exactly you mean by command line option?

Sure Pauls .. We can do the deployments from the command line with sys admin account But When provide the designer access to the those users[Vendors], default they will able to see the Import/Export button Right?.
So again here they have ability to Import/Export Application Packages/patches.

Thanks!!

Sure Pauls .. We can do the deployments from the command line with sys admin account But When provide the designer access to the those users[Vendors], default they will able to see the Import/Export button Right?.
So again here they have ability to Import/Export Application Packages/patches.

Thanks!!

yep correct, ultimately I think it's down to a training issue. Those actions are logged so they won't be able to deny importing a 'quick change' onto live and breaking it ;)