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I am trying to set up commmunities based support in a very large and complex org that I was not involved in setting up, and  going through all the steps that I would normally do in Building a "Simple" Case Management Process in Salesforce. I am really really struggling. For some reason my public cases are just NOT being created, and I can not get the stupid debug logs to work either. There are no errors, nothing. Just no cases being created.

Here's what I've tried 

• Ensure I have Web-to-Case enabled. So go to Setup > Build > Customize > Self-Service > Web-to-Case and check Enable Web-to-Case. 
• Ensure that the Default Case user has access to the record type and access to all the fields on the Global Action. Thanks to Josh in this post. 
• Ensure that the Guest site user has access to the record type and access to all the fields on the Global Action. I added ALL fields to the Guest User Access to test it. 
• Ensured the record type had all the picklist values available to it.
• Turned off all case assignment rules so they would not kick in. 
• Turned off all Process Builders and Workflows on Cases

Hmmm, it seems to be this https://help.salesforce.com/articleView?id=000005060&type=1 which is very weird becuase I KNOW I have set up a Support process on Napili previously using exactly the Web Company, Web Name, Web Email and Web Phone fields. Bizzare. OK. Turning everything back on to see if it's still that.

Well, I don't know if it was that, but it's a good checklist to try. 

Here's another thing I ran into. After deploying a new Global Action, it just would not display on the Community page, not matter what I tried. It's API Name was PartnerProgramNew. After many hours I renamed it to PartnerNew and it then worked! Is it a lenght thing? Did it just need to refresh? I don't know.