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Note on sustained payloads at 2MB limit #4712

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8 changes: 8 additions & 0 deletions docs/evaluate/temporal-cloud/limits.mdx
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Expand Up @@ -237,6 +237,14 @@ This limit is non-configurable for Temporal Cloud.

The [BlobSizeLimitError guide](/troubleshooting/blob-size-limit-error) provides solutions for handling large payloads.

:::note

The 2 MB limit is the maximum size for a single request, not a sustained-throughput target.
Sustained, high-volume use of large payloads can degrade Namespace performance, and Temporal reserves the right to rate limit such traffic to protect the service.
For workloads that regularly produce large payloads, offload them to [External Storage](/external-storage) and keep inline payloads small.

:::

### Per Workflow Execution concurrency limits

If a Workflow Execution has 2,000 incomplete Activities, Signals, Child Workflows, or external Workflow Cancellation requests, additional [Commands](/workflow-execution#command) of that type will fail to be applied to that Workflow Execution:
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