Discussions

I have questions on merging site:

Lets say I have two sites
Site AB (it has job, quotes, invoices , billing contact, some other contacts and details)
and
SIte ABC (it only has two contacts and an address)

If I try to merge them and want to set the second one (ABC) as primary.

What would be the result of it?
Is there any possibility, even if I choose Site ABC from the dropdown while merging, the result still comes up with card for Site AB.
What are the points to be considered while merging a site?
What will happen to the all the information on both sites?