As I was going round and round a few weeks ago trying to figure out why my custom claims provider was not working as I anticipated, one of our great developers (Chris R.) gave me a list of things to look at to try and diagnose the issue. After spending about 5 minutes on his list I realized where the problem was, so I thought I would share his list as food for thought, and throw out a couple of other things I've seen and do as well. This will be a living list, so as Chris or I come up with other suggestions we'll just update this posting. Also, if you folks have tips that you find useful I would encourage you to add them in the comments below. I can't offer any prizes other than a "thanks" from your fellow SharePoint developers! :-)
So, that being said, here's the list:
That's the list for now - as I said, we'll keep updating this as we have more things to add. Also, please add your suggestions in the comments too! Hope this helps someone, somewhere, out there.