I've created a custom contest in polygon and added some custom problems in that, and I want to add that to a private group. But when I try to use the contest ID in the "Add Contest to Group" form, it doesn't seem to work.
Is it possible to add contests from Polygon to groups, or do I have to do it through mashups?
You need to add reading permission to user "codeforces" in Polygon.
Yes, I've done that but then what do I write here? The internal polygon contest id doesn't work.
As far I remember You have proper link in bottom-right corner on a page where you can set time limits. It contains your username