Hi,
Long time since I've been here. I cannot modify the existing data connection of an InfoPath form published to a library. There is no custom code involved. We use SharePoint Online and Form Libraries. InfoPath 2013 is signed into with me organisational account.
When trying to change the data connection it asks me to sign in to the root domain of the tenant. I'm not sure if the root domain is relevant or not but it doesn't identify any of my username and password combinations. I only have one current single sign on for my organisational account.
Any ideas? It's stopping me from supporting our customers who still rely on InfoPath.
PS. I can create a new, identical connection and modify that one but none of the existing ones. As said it asks me to login.
C