Triggering Azure DevOps with a Service Bus Queue

I have a CMS which powers my Static Website, currently I can build my website each time I make a checkin via source control, however I cannot see my changes when I make CMS changes.

I hada solution! 
1. Make CMS change
2. Prismic CMS sends webhook trigger to Azure Functions
3. Azure functions parses webhook and creates as many builds as the webhook describes which are represented by service bus messages.
4. Service bus is read by Azure Devops and re-pushes changes!

Unfortunately I cannot get step 4 to work :( Is there any way to trigger an Azure Pipeline so I can run my build and release?

Cheers!
Michael.