We have build an enterprise iPad App and now we want to give it to our employees. Initially when testing, we used ad-hoc distribution collecting all the test device\'s UDID
You do not need to manage UDIDs if you are using an enterprise profile.
To install an enterprise app you need a provisioning profile built with your distribution certificate on each device. See Does an iPhone Enterprise provisioning profile need to specify phone UUIDs like an ad-hoc provisioning profile does?