I have had the exact same issue in the past, and the way to resolve it was to build your own flow, outside of the in built OAuth flow. To be fair this method also allows you to have some more control over the default method - For example the in built method will create accounts if users do not exist, whereas building yourself lets you control the rules. There is already some posts on the forum about this, or if you need more information, happy to help! https://forum.bubble.io/t/oauth-user-agent-flow-text-too-long-for-this-field/235454/4