Can't Return Challenge for Webhook (Monday.com to Slack Workflow)

[Chester (Chester Alvin Escorpiso)]

Hi I’m a beginner at this, and whenever I try to connect the webhook URL from my slack workflow I’ get an error message that says Failed to communicate with URL provided.

I do get the challenge token in slack after clicking connect but as it appears so, I am unable to return the challenge to Monday.

Can anyone help me please? What am I doing wrong?

[Camron (Cameron)]

Sorry to revive an old thread, but since there have been no replies and I am encountering the same issue. Is there someone who can shed a light on this? I seems we all get stuck on this step in the process.