@foobar Well, it’s just my suggestion.
"rQ" added to every addressbook-name? Why?
while adding the contacts from Nextcloud to my mobile with davdroid, “rQ” is added always to the addressbook-name.
Is anybody aware of this?
Please see https://forums.bitfire.at/topic/1674/what-is-the-2-letters-after-the-account-name-for-address-books and the links there (especially the manual)