Zammer

Consent Required

• Merchants may send messages only to recipients who have explicitly opted in.
• Opt-in must be collected through clear disclosure at checkout or via another verifiable method.

Opt-In Types and Rules

Zammer supports four distinct messaging use cases, each with its own opt-in requirements:

• Transactional: The consumer opts in to order updates either by entering their phone number and pressing Subscribe on the order confirmation page after purchase, or through a separate order-updates consent at checkout. In both cases the disclosure is shown beside the opt-in, nothing is pre-selected, and consent is never a condition of purchase. Messages are limited to order confirmations, shipping updates, and delivery notifications. No promotional content may be included.
• Marketing (Checkout opt-in): The consumer explicitly opts in via an unchecked checkbox at checkout, with the full disclosure shown on the same screen. Consent is recorded when checkout is submitted. A CTIA-compliant welcome message is delivered before any marketing content is sent. Merchants may then send promotional offers and campaigns.
• Cart Reminders (Double opt-in): Cart reminders require a second confirmation. The welcome message asks the consumer to reply YES to also receive cart reminders; they are sent only to consumers who reply YES. The checkout disclosure and the confirmation message must both name cart reminders, and the merchant's Privacy Policy must disclose the use of cookies or similar technologies to identify abandoned carts.
• Conversational (Website Widget): The consumer submits their phone number via a chat widget on the merchant's storefront, with the consent disclosure displayed beside the phone number field. Zammer sends a double opt-in confirmation with Yes/No buttons. The thread is only created upon explicit confirmation. Merchant responses must be relevant to the consumer's inquiry. Marketing content may not be sent into this thread unless the consumer holds a separate marketing opt-in.

WhatsApp-Specific Rules

• WhatsApp messages may be sent only to recipients who have opted in to WhatsApp specifically (an SMS opt-in does not transfer to WhatsApp unless the disclosure named WhatsApp).
• Outside a 24-hour window after the customer's last message, merchants may send only message templates approved by Meta, in the approved category (marketing, utility or authentication).
• Marketing templates must respect Meta's frequency limits and the customer's ability to opt out; a STOP, "unsubscribe" or block on WhatsApp suppresses all WhatsApp messages from that merchant.
• Merchants must comply with the WhatsApp Business Messaging Policy and Commerce Policy; content prohibited there is prohibited on Zammer.
• Repeated quality-rating drops or Meta restrictions on a merchant's WhatsApp account may lead Zammer to pause WhatsApp sending for that merchant.

Transparency and Identification

• All messages must clearly identify the sending merchant or brand.
• Recipients must always know who is contacting them.

Opt-Out and Support

• Every message must include simple opt-out instructions.
• Recipients can reply STOP to unsubscribe or HELP for assistance.
• Opt-out requests must be honored immediately.
• On WhatsApp, recipients can also block the business or use WhatsApp's built-in unsubscribe controls; these are treated as opt-outs.

Cross-Thread Suppression

A consumer who replies STOP in any thread is suppressed across all active conversation threads with that merchant, regardless of which opt-in path was used. Suppression is applied immediately and is keyed on merchant + phone number. Merchants may not attempt to re-engage a suppressed number through an alternate thread.