Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Apologies for the late reply Chitrahaas - it's been hectic just getting things to work. I've tried all your suggestions above, and the issue persists. We ended up having to perform a workaround. It appears that personal forms can be sent out and files can be uploaded just fine. the issue is when the forms are owned by a Sharepoint Group instead. Even members of that group are unable to upload the files. It's quite strange and we haven't been able to work this out. What we ended up doing was to create personal forms and have our flows interface with those instead, which is not an ideal solution, as these forms can get deactivated when a user account is deactivated upon leaving the organization, etc.