Passcode for campaign?

I just recently became a member, and I am trying to join a specific campaign (the reason I became a member), but it says that I require the correct passcode to join. The DM hasn't set any passcodes so I was wondering if anyone knew what was up.

Thanks in advance.
Permalink
A pass key is required for all campaigns. It's just a simple mechanism to keep random people from wandering into your campaign uninvited. Your DM should be able to see the pass key for the campaign in the settings tab. If not, ask him to message me and we'll work it out.

Also, I apologize for taking so long to reply.
Permalink
I also need the passcode to start the private campaigning your forum but I will cant find it for two years. Most of the students are join this forum so that’s why I will start the premier essay campaign and I am sure I am received a positive result of this campaign.
Permalink