---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/30517#article
headline: "30517: Shopping cart reminders must meet opt-in, privacy, and send limits"
url: https://www.twilio.com/docs/api/errors/30517
inLanguage: en
dateModified: 2026-09-14T16:28:48.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 30517: Shopping cart reminders must meet opt-in, privacy, and send limits

Log Type: APPLICATION

Log Level: ERROR

## Description

Shopping cart reminder programs must meet specific opt-in, privacy, tracking, and send-limit requirements. Reminders are limited to one message per abandoned cart, sent within 48 hours.

### Possible causes

* The opt-in terms and conditions do not state that the program includes shopping cart reminders.
* The program does not include a text-based double opt-in confirmation.
* The double opt-in message does not tell the user the program includes shopping cart reminders.
* The privacy policy does not disclose how abandoned cart data is captured (for example, cookies or plugins), and the terms do not reflect the cart reminder policy.

### Possible solutions

* Require a text-based double opt-in confirmation before sending reminders.
* State in your terms and privacy policy how you link a consumer's phone number to an abandoned cart, for example through cookies or plugins.
* Include shopping cart reminders explicitly in your call-to-action and terms.
* Send only one reminder per unique abandoned cart, within 48 hours.

### Additional resources

* [Toll-Free Verification Onboarding Guide](https://help.twilio.com/articles/13264118705051)