When i try to add Nintex workflow app to my share point could office 365 i get this "Sorry, this app is not supported on your server."
what I do as I called MS they said call Nintx?
Are you able to create and run SharePoint designer workflows using the SharePoint 2013 Workflow Platform Type?
The reason I ask is that I have seen this issue before when the Workflow Manager was not enabled on the Tenant.
The above test will tell you if the Workflow Manager is working or not.
It is possible to disable app add ins for a site collection or tenant. Do you believe that could be your issue?
You should be able to add the app regardless of having a subscription. You will have a trial window when added.
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