> ## Documentation Index > Fetch the complete documentation index at: https://knowledge.bitbybit.studio/llms.txt > Use this file to discover all available pages before exploring further. # Set up AI Custom Event triggers in automation > Use the AI Custom Event trigger so your AI agent can run a bitCRM automation during a conversation, based on a custom skill in AI Studio. The **AI Custom Event** trigger lets your AI agent start a bitCRM automation in the middle of a conversation. You add the trigger in bitCRM, then tell the AI agent when to run it with a custom skill in AI Studio. ## Before you start * Open [Automation](https://app.bitbybit.studio/bitcrm/automation-new). * Make sure you have an AI agent set up in **AI Studio**. ## Step 1: Add the AI Custom Event trigger * Click **Create new automation**, or open an existing automation. * Click **Trigger** and choose **AI Custom Event**. * Enter a **Trigger name** (required). Use a name that says what the automation does, for example "Product interest detected". * Click **Save**. Trigger window with AI Custom Event selected, an empty Trigger name field, and a note to set it up in AI Studio ## Step 2: Build and activate the automation * Add the steps the automation should run after the trigger. Automation flow that starts with an AI Custom Event trigger, followed by a time delay and a WhatsApp Cloud API message * Click **Save automation**. * In the **Automation** list, make sure the automation's switch is on. Automation list with the AI Custom Event automation switched on Only active automations with an AI Custom Event trigger can be picked by the AI agent. ## Step 3: Connect the automation to your AI agent * Go to **AI Studio** and open your AI agent. * Open the **Skills** tab and click **Add skill**. Skills tab in AI Agent Studio with the Add skill button highlighted * Select **Custom skill** and click **Add skill**. Select skill window with Custom skill selected and the Add skill button highlighted * Fill in the skill's **Name** and **Description**. * In **Instructions**, describe when the AI agent should run the automation, and type **@** to mention it. For example: "If the customer asks about or shows interest in red shoes, run @Product interest detected". Custom skill page with instructions that mention an automation, and the Automations list shown after typing @ For the full custom skill setup, see [Add and manage skills in AI agent studio](/ai-studio/how-to-setup-skillset-in-ai-studio). ## When the automation runs The automation runs when the AI agent decides the situation in your custom skill has happened. It does not run when: * No active custom skill mentions the automation. * The automation is inactive. * The customer has no valid phone number or email. If you delete an automation that a custom skill mentions, your AI agent can no longer run it. The custom skill shows **Needs attention — part of this skill no longer works** until you mention another automation. ## Related articles * [Add and manage skills in AI agent studio](/ai-studio/how-to-setup-skillset-in-ai-studio) * [How to set up a trigger](/bitcrm/how-to-set-up-a-trigger) * [How to create an automation](/bitcrm/how-to-create-an-automation)