Unable to add a webhook Notification channel

Hi community

I created a webapi with a post method written in that in dotnet and I need this to be accessed when some query is true when I’m giving my local api url for a post then is I click on test then I’m getting the following error as failed to send a alert any small help is also appreciated notification

@vardhanramaguvvala there were some bugs in the alerting UI in the early 8.1 releases. I’d suggest trying the 8.2.0-beta2 and reporting back if the issue remains :+1: