Why did TradingView trigger the alert but the webhook fail?

What this means in practice

Alert generation and webhook delivery are separate. Invalid URL/TLS, redirects, authorization, malformed data, rate limits, server errors and slow responses are common causes. This page is specifically about “Why did TradingView trigger the alert but the webhook fail?”, so each scenario below is explained by its own mechanism instead of sharing one generic diagnosis.

Real-world scenarios

Scenario A — 404

A 404 means the request reached a server but not a valid webhook route. Verify hostname, path and deployed endpoint version; cTrader parameters cannot repair a missing HTTP route. For Scenario A — 404 on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

Scenario B — 401/403

Authentication or authorization failed before execution. Verify connector credentials and permission for the intended account, and fail closed instead of routing to another account. For Scenario B — 401/403 on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

Scenario C — 429

The receiver is throttling intake. Distinguish runaway Pine logic, malicious traffic and legitimate bursts, and do not blindly replay stale entries after the rate limit clears. For Scenario C — 429 on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

Scenario D — 500

Treat this as duplicate-delivery risk. If the first request was already persisted or queued before the error response, a resend must reuse the same signal ID and produce no second trading effect. For Scenario D — 500 on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

Scenario E — TLS

TLS fails before application validation. Check certificate hostname, validity, chain and HTTPS configuration; changing Pine or the payload cannot repair a certificate problem. For Scenario E — TLS on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

Scenario F — Timeout

Timestamp request receipt and HTTP response separately. Validate or persist the command quickly and do not keep the TradingView webhook open while waiting for database work, reconnects or broker fills. For Scenario F — Timeout on question 13, use that evidence specifically to answer “Why did TradingView trigger the alert but the webhook fail?”; keep it separate from the evidence for the other scenarios on this page.

What to check

• TradingView alert log and exact send time
• HTTP status and receiver timestamp
• validated payload plus signal ID
• cTrader result only after transport is proven

Practical rule

For “Why did TradingView trigger the alert but the webhook fail?”, change only the first layer whose evidence no longer matches the intended action. Preserve signal identity, timestamps and final cTrader state, and reproduce execution-affecting changes on demo before live use.