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

# Running a Workflow

> Execute workflows, track progress, handle errors, and retrieve outputs.

Execute a workflow, track progress, handle errors, and retrieve outputs.

## How execution works

Nodes execute in the order defined by the workflow graph, respecting dependencies and input/output connections.

## Required vs optional inputs

* **Required inputs** must be set for the workflow to be valid.
* **Optional inputs** add extra control (e.g., image uploads, aspect ratio).

## Monitoring execution

Track workflow progress using:

* Progress bar
* Prompt execution status
* Output preview

## Handling errors

Errors appear in the execution panel with messages indicating which node failed and why. Fix the input or reconnect the upstream node, then click **Run** again.

## Retrieving outputs

You must **add a Save node** to retrieve workflow outputs.

| Modality | Save node  |
| :------- | :--------- |
| Image    | Save Image |
| Audio    | Save Audio |
| Video    | Save Video |

Right-click a Save node to download the generated output (image, video, or audio) to your local machine.

## Next steps

* Try a guided example: [Step-by-Step Tutorials](/gmi-studio/gmi-studio-user-manual/tutorials).
* Manage saved workflows: [Managing Workflows](/gmi-studio/gmi-studio-user-manual/managing-workflows).