Vercel deploy hook stuck in PENDING state for Next.js monorepo

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1

Similar ticket raised under Vercel community (for reference): https://community.vercel.com/t/github-push-events-not-triggering-vercel-deployments/8082

Hi, facing the same issue described here - deploy hook returns PENDING but deployment never progresses.

Setup

  • Next.js 15 app inside a monorepo (frontend subdirectory)
  • Vercel project root directory set to frontend
  • GitHub Actions workflow POSTs to a Vercel Deploy Hook on every push to develop branch
  • Git Integration also connected to hiregram-ai/hiregram

Symptom

Deploy hook call succeeds and returns a job ID, but the deployment never moves past PENDING - no build starts, nothing new appears in the dashboard or vercel ls output.

{
  "job": {
    "id": "...",
    "state": "PENDING",
    "createdAt": "..."
  }
}

What we’ve already ruled out

  1. Recreated the deploy hook (old URL was silently returning 404 for months)
  2. Changed Ignored Build Step from Automatic to git diff HEAD^ HEAD --quiet (Reverted to Automatic now)
  3. GitHub webhooks are delivering correctly with status 201
  4. vercel deploy --yes from CLI builds and deploys successfully
  5. next.config.ts has no redirects or rewrites - it’s essentially empty
  6. Git Integration is connected and shows as active in Settings → Git

Pushed two test commits to develop, waited 5+ minutes each time - zero new deployments appeared.

I’m specifically looking for help understanding why deployments get stuck in PENDING and never progress, despite being triggered successfully. Has anyone encountered this issue before, or are there any Vercel system limits or configurations that might cause this behavior?

2

There’s another community post with 404 debugging tips that might be helpful. Please give these solutions a try and let us know how it goes.

A human should be around soon to offer more advice. But you can also get helpful information quickly by asking v0.