*** My resolution to this here – https://blog.ciaops.com/2023/04/27/connect-power-automate-to-twitter-using-a-bring-your-own-app-approach/
Since the 20th of April 2023 the Power Automate Twitter connector has been failing to authenticate. This means you get an error in your Flow that looks like:
When I tried to fix the connector I am greeted by.
There have no doubt been changes in the Twitter API which have caused this.
I’m trying to find an answer from Microsoft on how this will be handled going forward, but as yet I have not heard nothing back. If I find out, I’ll post here again.
CIAOPS 
https://powerusers.microsoft.com/t5/Power-Platform-Integrations/Unable-to-make-a-new-connection-to-twitter-it-gives-401/m-p/2121006
The OAuth app managed by Microsoft was shut-down by Twitter. This means that actions/triggers using the shared authentication type will no longer work.
Targeted comms were sent to customers on February (see Customer Comms – Part 2.docx) to alert them about this exact scenario and recommending them using the BYOA authentication.
This issue will not be fixed, if customers want to keep using this connector, they’ll need to create their own OAuth app and use it in their flows/apps/logic apps
LikeLike
My understanding is that the BYOA also fails as well now or requires a payment. I admit that I need to test this myself to verify which I’ll do soon. Appreciate the info.
LikeLike
Would you know of a step by step guide to setting up the OAuth apps? I have tried and tried and it doesn’t work! Clearly, I’m missing something??
LikeLike