After installing the Related Products Pro for WooCommerce plugin, follow these steps to validate your OpenAI API key:

1. Go to your WordPress Dashboard → SaffireTech Plugins → Chat GPT (API) Key Settings.
2. Enter your saved OpenAI API Key.
3. Click the “Validate API Key” button.
   • The system will check your key and display a validation message if successful.
4. Choose your preferred ChatGPT model from the available options.
5. Click “Save Settings” to store the API Key and selected model.