What are the minimum requirements for creating a lookalike audience?

Creating a lookalike audience on Facebook requires meeting certain minimum requirements to ensure that the audience generated is relevant and effective. Here are the key minimum requirements for creating a lookalike audience:

1. **Seed Audience**:
   - **Size**: The seed audience should ideally consist of at least 100 people from a single country. However, for best results, Facebook recommends a seed audience of at least 1,000 people.
   - **Quality**: The seed audience should be composed of individuals who have a common trait, such as existing customers, high-value leads, or users who have taken a specific action on your website or app (like making a purchase or signing up).

2. **Data Source**:
   - The seed audience data can be sourced from various places such as:
     - **Custom Audiences**: Lists of customer email addresses or phone numbers that you upload to Facebook.
     - **Website Visitors**: Users who have visited your website or specific pages within a defined period.
     - **App Users**: Users who have interacted with your mobile app, such as making in-app purchases or completing specific actions.
     - **Engagement with Facebook Content**: Users who have engaged with your Facebook Page, posts, or ads.

3. **Facebook Pixel or App Events (if applicable)**:
   - If using website visitors or app users as your seed audience, you'll need to have Facebook Pixel installed on your website or Facebook SDK integrated into your mobile app.
   - Ensure that the Pixel or app events are set up correctly to track the actions of your audience (e.g., purchases, registrations) that you want to replicate in the lookalike audience.

4. **Country Selection**:
   - Specify the country or region where you want to find similar users when creating the lookalike audience. Facebook allows you to choose from a list of supported countries where your seed audience is located.

### Additional Tips:

- **Accuracy and Specificity**: The quality and specificity of your seed audience will directly impact the accuracy and relevance of the generated lookalike audience. Aim for a seed audience that closely represents your ideal customer profile or target audience.

- **Data Privacy**: Ensure compliance with data privacy regulations (such as GDPR or CCPA) when using customer data to create lookalike audiences. Users must have consented to their data being used for such purposes.

Creating a lookalike audience on Facebook is a powerful way to expand your reach to new potential customers who share similarities with your existing audience. By meeting these minimum requirements and carefully selecting your seed audience, you can create a highly targeted and effective lookalike audience for your ad campaigns.