Bot promotion across environments A360

Is it possible to use the promote function to migrate bots in A360 cloud? Would someone be able to help me get the promote function working? Thanks! 

I followed these instructions and still no luck. Move bots across environments

I create an admin role to import, manage packages, and generate API in PRD env.

I created an admin role to export in DEV env

I added the PRD URLS in DEV env to promote in the security settings. 

is there anything else that I am missing?

When I attempt to promote, I receive this error message. 

‘Cannot connect to the target control room, reason - Unauthorized If the problem persists, please contact your system administrator. Code: blm.target.cr.cant.connect’

Any help is much appreciated, thanks!