> ## Documentation index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Search it with GET https://upstash.com/docs/search?q=<query>.
> Use these to discover all available pages before exploring further.

# Configure a Run

You can configure a workflow run when starting it. The following are the options you can configure:

1. Retries: The number of retry attempt Upstash Workflow does when a step fails in the workflow run
2. Retry Delay: The delay strategy between retries when Upstash Workflow attempts retries.
3. Flow Control: The rate, period and parallelism that steps should respect and logical grouping key to share with other workflow runs.

You can pass these configuration options when starting a workflow run:

```typescript
import { Client } from "@upstash/workflow";

const client = Client()

const { workflowRunId } = await client.trigger({
    url: `http://localhost:3000/api/workflow`,
    retries: 3,
    retryDelay: "(1 + retries) * 1000",
    flowControl: {
        key: "limit-ads",
        rate: 1,
        parallelism: 10
    }
});
```

The workflow run configuration does **not** apply to `context.call()` and `context.invoke()` steps.
These steps accept their own configuration options, allowing fine-grained control over external requests.
If not specified, they fall back to their default values.

For details, see:
- [context.call](/workflow/steps/call)
- [context.invoke](/workflow/steps/invoke)

<Tip>
A single `context.run` step can override the run's flow control and retry configuration by passing
`flowControl`, `retries` or `retryDelay` as its third argument. See
[step-level flow control](/workflow/features/flow-control#step-level-flow-control).
</Tip>