Using the B4G version 2.11.0 with Azure DevOps server.
Application.yml has the following setting:
# (Optional) Webhook secret token from the webhooks repository settings of Azure DevOps Server
webhook-secret: XXXXXXXXXX
After installing the certificates doing some tests and one test creates an element and pushes it to Endevor.
That generate the message below on the B4G log -
2022-08-05 17:58:23.925 ERROR 33556948 --- [https] c.c.e.b.c.m.AbstractPushEventMapper : Event rejected - invalid secret: Invalid Webhook event header.