Re: "Invalid JWT Error When Sending Messages from Azure Bot to Skype User

How about this:

 

• Verify Bot Channel Registration:
  • Double-check that your bot is registered correctly in the Azure portal and that Skype is still listed as an active channel (if available).
• Switch to Multitenant Bot:
  • If you're using a single-tenant bot, try re-registering it as multitenant and updating your credentials accordingly.