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

# Pre-Call Workflows

> Run automations before a call connects to retrieve data, filter contacts, or route calls

## Overview

Pre-Call Workflows let you run automations before a call connects. Use them to look up customer data, update call variables, block unwanted calls, or route inbound calls to a different agent.

There are two types:

* **Outbound** - Runs before each campaign call is placed. Assigned to a campaign during creation.
* **Inbound** - Runs when an incoming call arrives, before the agent speaks. Assigned through the agent's [Incoming Call Personalization](/building/incoming-call-personalization) settings. Inbound workflows must complete within 5 seconds and do not support Delay or LLM nodes.

***

## Workflow List

Use the **Outbound** and **Inbound** tabs to filter workflows by type. Click **New Workflow** to create one - enter a name and select an agent. The call direction is determined by whichever tab is active.

<Frame>
  <img src="https://mintcdn.com/strada/fL3bvKDI23dDe5je/deployment/pre-call-workflows-overview.png?fit=max&auto=format&n=fL3bvKDI23dDe5je&q=85&s=cbcf75816bcef00421738e3266d756b6" width="1024" height="372" data-path="deployment/pre-call-workflows-overview.png" />
</Frame>

Each card displays the workflow name, linked agent, a <Icon icon="copy" /> button to copy the workflow ID, and a <Icon icon="pencil" /> button to open the builder. Workflows are tied to a specific agent at creation and cannot be reassigned.

***

## Workflow Builder

Pre-call workflows use the same visual builder as [Strada Workflows](/building/strada-workflows). Refer to that page for details on building, testing, and publishing workflows.

The key differences for pre-call workflows are:

**Pre-call specific nodes**

* **Block Call** - Stop the call from being placed
* **Update Variables** - Merge variables into the call before it connects
* **Handoff** - Route to a different agent (inbound only)
* **Transfer Call** - Transfer to a destination number (inbound only)

**Constraints**

* Inbound workflows do not support Delay or LLM nodes
* Edits are auto-saved as a draft, but you must click **Publish Workflow** for changes to take effect in production

<Frame>
  <img src="https://mintcdn.com/strada/fL3bvKDI23dDe5je/deployment/pre-call-workflows-publish.png?fit=max&auto=format&n=fL3bvKDI23dDe5je&q=85&s=cf0d5f50aa87def4f8199440d42ed250" width="1024" height="112" data-path="deployment/pre-call-workflows-publish.png" />
</Frame>

***

## Assigning Workflows

**Outbound** workflows are assigned when creating a new campaign. The dropdown shows outbound workflows matching the selected agent.

**Inbound** workflows are assigned through the agent's [Incoming Call Personalization](/building/incoming-call-personalization) settings. Select Pre-Call Workflow as the personalization source and choose a workflow.

A workflow only runs when it has been both published and assigned.

***

## Monitoring

Pre-call workflow runs appear in the **Workflow Runs** page with a "Pre-Call" type filter. Campaign views show a "Pre-Call" column linking to run details, and blocked calls display a "Blocked" status badge.