How does Ometria subscribe and unsubscribe contacts?

You can subscribe (opt-in) and unsubscribe (opt-out) contacts by sending a customer listing via any of our sources:

• Ometria's preference centre
• API
• CSV upload
• Ometria form or overlay
• an ecommerce importer (e.g. Magento, Shopify or BigCommerce)
• a third party integration.

The listing needs to contain these fields:

marketing_optin: true, false

timestamp_subscribed or timestamp_unsubscribed: timestamp of the event.

Ometria triggers a subscription or unsubscription event (and can trigger a campaign) once per channel:

• the first time a contact is subscribed/unsubscribed to email, and;
• the first time they subscribe/unsubscribe to SMS.

This is to prevent sending a welcome campaign a second time, when the contact might already be a customer.

In order to trigger a subscription event (and a welcome campaign), make sure to send both marketing_optin and timestamp_subscribed on the same listing.

For each contact, Ometria keeps the dates of the most recent opt-in (subscribed) and opt-out (unsubscribed).

These dates can be used to segment contacts in the customer filter.

Ometria uses hierarchies when determining whether a contact’s subscription status should be changed or not, depending on where the subscription event came from.

See: Force opt-in

Ometria is dedicated to protecting the validity of subscription events, and ensuring that they cannot be overridden by mistake.

See also:

• Force opt-in
• Subscription timestamps
• Campaign performance: Subscribers report
• Retrieve contacts that unsubscribed using their email client (via API)