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Jonathan Crow 6Jonathan Crow 6 

Guest User unable to upload file from flow

I have a flow where the guest user can upload a file and attach it to a case. The flow works in our development environment, but not in testing or production. As a guest user if the file is uploaded I get the error message: "Can't upload File.csv." or whatever filename I use. So my assumption is that it has something to do with the environment of the org. The problem is that there is another flow that is engineered a bit differently but guest users are able to upload files just fine. And I believe the flow that has the error worked at one time.

I have checked to make sure that Settings -> General Settings -> "Allow site guest users to upload files" is checked.
I couldn't find any triggers, validation rules, or classes affecting any of the following: Content Version, Content Document, Content Delivery, or Content Document Link.

Any other ideas of what the problem could be or where to start troubleshooting?
VinayVinay (Salesforce Developers) 
Hi Jonathan,

Hope your query is answered below, let me know if you have any questions.

https://salesforce.stackexchange.com/questions/396284/guest-user-unable-to-upload-file-from-flow

Please mark as Best Answer if above information was helpful.

Thanks,