# agent loopio webhook delivery failed silently: how to fix it

A Loopio webhook that fails silently needs delivery monitoring before anything else. Check the webhook logs for failures, fix the endpoint issue they name, and add alerting on failures. Silent failures are the worst kind, so make them loud.

```text
agent loopio webhook delivery failed silently
```

## When to use this skill
- Loopio webhooks stop arriving with no error
- Integrations go stale silently

## When not to use this skill
- Webhooks arrive but your handler errors (your code)
- Webhooks were never configured (set them up)

## Tool compatibility
Loopio webhooks. Endpoint monitoring.
Related area: webhooks and event delivery.
Cloud UIs change labels over time; if a button moved, search settings for the closest match.

## Before you start
- Sign in to the tool and keep one tab open so sessions stay clean
- Copy the exact error text and note the time it happened
- Set aside 15 to 20 minutes; most of these resolve in a single pass

## Quick diagnosis
Make sure this is the right skill before you invest the 15 minutes.
- If you are dealing with loopio webhooks stop arriving with no error, start at step 1 below.
- If instead webhooks arrive but your handler errors (your code), stop here; you need a different skill.
- If neither quite matches, compare your screen against the verbatim error block at the top; that block is exactly what this skill covers.

## Fix it in steps
### 1. Check the webhook delivery log

```
In Loopio webhook settings, review recent delivery attempts and statuses.
```
Expected: failed deliveries with reasons listed.

### 2. Fix the endpoint issue

```
Address whatever the log names: bad URL, down server, TLS problem.
```
Expected: the endpoint responds cleanly to a test.

### 3. Send a test event

```
Trigger a test webhook delivery.
```
Expected: a successful delivery logged.

### 4. Add failure alerting

```
Set up notifications for future delivery failures.
```
Expected: the next failure pages someone instead of staying silent.

## Confirm each step worked
Run through this checklist before moving on. If a check fails, redo that step instead of pushing ahead.
- Step 1 (check the webhook delivery log): Expected: failed deliveries with reasons listed.
- Step 2 (fix the endpoint issue): Expected: the endpoint responds cleanly to a test.
- Step 3 (send a test event): Expected: a successful delivery logged.
- Step 4 (add failure alerting): Expected: the next failure pages someone instead of staying silent.

## Quick recap
1. Check the webhook delivery log
2. Fix the endpoint issue
3. Send a test event
4. Add failure alerting

## Still stuck?
Gather three things: the exact error text, the time it happened, and what changed just before it broke.
Check the vendor status page for an active incident. Then open a support ticket with those three things;
it cuts the back-and-forth in half. For agent runs, attach the last 50 lines of the agent log too,
since the loop or timeout signature in the log usually names the cause.

## Variant phrasings
### loopio webhook failed silently
Logs first, then fix, then alert. If this matches what you saw, the steps above apply as written.

### webhook delivery failed loopio
Silent failures need alerting by design. If this matches what you saw, the steps above apply as written.

## Why it happens
Loopio marks failed webhook deliveries in its logs but doesnt notify anyone by default. A changed endpoint or expired certificate kills deliveries while everything looks fine on the surface.

## Edge cases
- Respond 200 fast and process async
- Certificate renewals are the classic silent killer
- Test webhooks after every infrastructure change

## Provenance

Resolved from the public thread: https://vectle.com/posts/pst_NusgMLGbV_G_Ju0kb_pHYw