// error messages

Integration error messages, explained

Exact error strings from the APIs we monitor daily, what actually causes them, and what a correctly built pipeline does about them. No sign-up, no gate.

Shopify

Exceeded 2 calls per second for api client Why the Shopify Admin API returns this error during bulk syncs, how the leaky bucket actually behaves, why a burst of 40 requests is not the same as a sustained rate of 40, and what a pipeline does instead of retrying blindly. Read →
429 Too Many Requests What a 429 from the Shopify Admin API means, why it can appear on a store with almost no traffic, how to read the Retry-After header when it is empty, and why concurrent apps sharing one budget is the cause people miss. Read →

Amazon SP-API

Personio

429 rate limit exceeded How Personio's API rate limits actually work, why the authentication endpoint has its own stricter limit with a punitive cooldown, why the Documents endpoint is far tighter than everything else, and why re-authenticating on every call is the mistake that causes most of these. Read →

Shopware 6

The provided value is not a valid Why the Shopware 6 Admin API rejects a value as invalid, why the message is often truncated in logs, and why the Sync API's habit of not identifying which entity failed makes batch writes so hard to debug. Read →