The maximum request throughput Shopify allows for an app or client.
Shopify enforces per-app, per-store rate limits on both the REST and GraphQL Admin APIs. REST is measured in requests per second (2 for standard plans, 4 for Plus) via a leaky-bucket. GraphQL is measured in query cost points (a bucket that refills at 50 or 100 points per second). Well-behaved bulk operations respect the cost header, back off exponentially on 429 responses, and prefer bulk mutations over per-record calls. Ignore rate limits and long jobs stall halfway through with half your changes applied.