I have a user_id field = 0 in many records in notifications table

I use OJS 3.0.2.
I see in the notifications table lots of them with user_id field with value 0. Is this correct?
I have not such a user_id value in my users table.
Thanks in advace for your reply.

Hi @jascanio,

Yes, I believe these are used for some legitimate notifications. Are you experiencing problems related to notifications that you think might be connected to user_id=0?

Alec Smecher
Public Knowledge Project Team

Hi @asmecher,
I was experiencing problems connected with notifications which I solved by following your advices in some topic (tasks slide would render a spinner endlessly, loading nothing). But this is solved for me now. I ran the query you mentioned in that topic and followed further instructions.
It was when researching notifications table when I saw this user_id “0”
Everything’s fine then.
Thanks for your reply.