I checked with a Crowd developer and he confirmed that the two roles are equivalent. There's no differentiation in Crowd the product (yet), and connected applications do not use this information (yet). Plugins to Crowd are free to use the information, though we're not aware of any that do.
We're running 3.2.0 and I just checked the difference between the two modes:
Unsure if the admin mode isn't working properly in 3.2.0, but the comment of admin and sysadmin effectively being the same doesn't seem accurate
re: group admin only - we needed to delegate just group membership management to a sub-set of users and were able to build something quite nice using the APIs available.
I can confirm that Craig's differences noted are still the same on Crowd Data Center 3.7.0
It would be great if the Admin role was able to manage all users and groups, but leave the system configuration to the System Admin role. Any possibility this might be a new feature coming soon?
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