It matters to me because I do most of my drafts in Scrivener, so I use the codes, e.g. {Kay, 1977, #878}. I work on three separate machines, so record numbers have to be the same. EndNote Web doesn’t keep record numbers, so everytime an Endnote connects to EndNote web, it downloads data into consecutive record numbers - even if I have deleted files on one computer so the record numbers are no longer consecutive. Then this scheme falls apart. (I used to do the sync with SpiderOak, which worked great unless I forgot to close Endnote on one machine, then it totally trashed the database and I had to pull everything from a backup.)