In my team, we implemented some UI to set user access rights (assign/revoke permission levels) on a certain SharePoint list. The UI supplies a "undo" feature: If you change the rights over the UI, you can restore the rights the user had before by clicking "undo".
Now there is a problem if the user had the "Limited Access" permission level: This permission level is removed when you do a change over the UI. When trying to Undo, the permission level should be added again, which leads to a
You cannot grant a user the limited access permission level.
I've read that SharePoint grants that right automatically when a user gets access to some entity beneath the site. Still I can revoke the right manually, but then I cannot re-grant it.
Is there a proper way I could work around that?
My thoughts:
Did I get it right that this "limited access" is granted by SharePoint on the site level only?
So, do all the lists beneath the site only contain that permission level "accidentally" because they inherit it?
Does that permission level have any effect at all on a list, or does it only apply to the site itself?
So, would it be save to just remove it from a list and do not add it anymore when the user clicks "undo", since it has no effect anyway? (My UI always works on list / list item level, never on the whole site/web).
