I don't know if I would say “idea”. Is “obligation” the right term? I'm not sure.
As we were changing administrators, when it was made clear that it was Canada Life who had won, we knew there were privacy issues and personal information that could not be transferred from one person to another. There were 1.7 million.... Some have retired. Some were dependants who were now out of school and were no longer covered by the plan. Some are deceased, unfortunately. From all of that we had to make sure we had a clean slate and a clean base of information to implement the new plan. That's part of the reason pre-enrolment was done.