When importing patrons, you can match on cardnumber or username, then preserve/protect selected fields if there's a match. However it doesn't appear that user permissions are protected if there is a match - these get reset/wiped. There should be an option to protect user permissions if a match is found.
Hi Aleisha, I am not sure which version it was added in, but there is now a feature to preserve values on import that includes "System permissions" (flags). You can find it on the patron import page collapsed as "Preserve existing values". I think this should work or would be a bug otherwise - do you agree?
Yes that sounds good! Will close this