The key vault and certificate are required for webbook configuration.
Where is it configured?
Login with agatsaas user to https://portal.azure.com (passowrd in LastPass)
In the search type AgatKeyVaultProduction and click the result
Click on Certificates
Click on the agatsaasagatsolutions certificate
Click on the current version
At last, you will be redirect the details where you will able to see the certificate information