I have made an iPad In-House Distribution App which is installed in 2000 iPads of my company. Now, I want to enable App group to share few data between my Apps of same developer account. For that, I will have to enable App Groups for my App id and re-generate Development and Distribution profiles.
If I do that, will it affect existing installed Apps? Will it affect upcoming releases?
Simple answer to your query:
Change in provisioning profile won't effect on existing enterprise app, installed in user devices.
An enterprise app gets affected only, if you make any change (revoke/renew/regenerate) in your distribution certificate.