> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agno.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sequential Workflows

> Run steps in a fixed order and pass each result to the steps that follow it.

**Example Flow**: Research → Data Processing → Content Creation → Final Review

Sequential workflows provide a fixed execution order. A custom function reads the preceding result from `StepInput.previous_step_content` or a named result from `previous_step_outputs`.

```python sequential_workflow.py theme={null}
from agno.workflow import StepInput, StepOutput, Workflow


def collect_research(step_input: StepInput) -> StepOutput:
    topic = str(step_input.input)
    return StepOutput(content=f"Research notes for {topic}")


def process_research(step_input: StepInput) -> StepOutput:
    research = step_input.previous_step_content or "No research available"
    return StepOutput(content=f"Processed data:\n{research}")


def create_review(step_input: StepInput) -> StepOutput:
    processed = step_input.previous_step_content or "No processed data available"
    return StepOutput(content=f"Final review:\n{processed}")

workflow = Workflow(
    name="Sequential Analysis Pipeline",
    steps=[
        collect_research,
        process_research,
        create_review,
    ],
)

workflow.print_response("Analyze the competitive landscape for fintech startups", markdown=True)
```

<Note>
  See [Custom Functions in Workflows](/workflows/workflow-patterns/custom-function-step-workflow)
  for function and class executors.
</Note>

## Developer Resources

* [Sequential Workflow](/workflows/usage/sequence-of-steps)

<Note>
  `StepInput` and `StepOutput` provide standard interfaces for data flow between function steps.

  See [`StepInput`](/reference/workflows/step_input) and [`StepOutput`](/reference/workflows/step_output).
</Note>