How to trigger pull requests in Teamcity

[Сергей Светлаков]

Hi! 

I have some problems with pull requests. I had configured Build feature in Teamcity. Additional I'd added WebHook on  bitbucket server. When PR created nothing happens, but when I open it on Bitbucket server or in Visual Studio Teamcity starting build this PR.

Why it works like this? Or it is correct?

Teamcity 2019.2.4

BitBucket 7.2.3