You may want to "hide" some product sales from becoming Fomo notifications.
Using the setup below, you can configure specific products in your Magento admin panel to be ignored by Fomo, as new sales occur.
Huge thanks to Fomo customer Indur for the help writing this guide.
Step 1 - Create a new Product Attribute
Create an attribute named fomo_ignore. In the configuration settings after 'Save,' you'll be able to dictate which products have access to this attribute.
Important: you must make this attribute a "Catalog Input Type" of "Yes/No" since Fomo will look for a true/false reading of the attribute.
You can safely make this attribute visible to all products, and that will not ignore all products.
Step 2 - Whitelist the Attribute's API Visibility
Navigate to System > Web Services > REST attributes.
Choose the role that needs access to the attribute, most likely Admin since the Fomo API connection requires an Admin role.
Check the checkbox for fomo-ignore under Catalog -> Product -> Catalog Product -> Read.
Step 3 - Add the Attribute to your Excluded Products