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When sending OTP messages to New Zealand using AWS End User Messaging, you don't necessarily need to set up a separate short code, but there are important considerations and potential impacts to be aware of:
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Shared Pool vs. Dedicated Short Code: Without a dedicated short code for New Zealand, AWS End User Messaging SMS will attempt to send messages using a shared pool of short codes. However, due to local carrier restrictions on shared numbers in New Zealand, deliverability through these shared numbers is on a best-effort basis.
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Deliverability Impact: Using a shared pool may result in less reliable message delivery compared to using a dedicated short code. This could potentially affect the timely receipt of OTP messages by your New Zealand users.
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URL Restrictions: If your OTP messages contain URLs, these must be allow-listed through a dedicated short code process for New Zealand. This means that without a dedicated short code, you may face limitations on including links in your messages.
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Recommendation: AWS strongly recommends procuring a dedicated short code for all traffic being sent to New Zealand to ensure better deliverability and compliance with local regulations.
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Cross-Country Limitations: It's important to note that short codes can only be used to send messages to recipients in the same country where the short code is based. If you're currently using a short code from another country, it may not be optimal or compliant for sending to New Zealand numbers.
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Alternative Options: If you decide not to use a dedicated short code for New Zealand, you might consider using a sender ID instead. However, sender ID support and regulations vary by country, so you'd need to verify if this is a viable option for New Zealand.
Given these factors, while it's possible to send messages to New Zealand from your current setup, using a dedicated short code for New Zealand would likely provide better deliverability, compliance, and overall reliability for your OTP service. If New Zealand is a significant market for your service, investing in a dedicated short code would be advisable.
Sources
Supported countries and regions for SMS messaging with AWS End User Messaging SMS - AWS End User Messaging SMS
Requesting dedicated short codes - AWS End User Messaging SMS
How to Send SMS Using a Sender ID with AWS End User Messaging | AWS Messaging & Targeting Blog
Please note that without a dedicated short code, AWS End User Messaging SMS still attempts to send messages to New Zealand recipients using a shared pool of short codes. Due to local carrier restrictions around shared numbers, deliver-ability over these shared numbers are made on a best-effort basis. Therefore, AWS End User Messaging SMS highly recommends procuring a dedicated short code for all traffic being sent to New Zealand. Messages containing URLs must be allow-listed through the dedicated short code process. For more information on purchasing a short code, please refer to the documentation [+].
[+] https://docs.aws.amazon.com/sms-voice/latest/userguide/phone-numbers-request-short-code.html
New Zealand actually has quite a lot of restrictions that needs to be fulfilled to guarantee delivery. If you are sending critical and/or time sensitive messages, we recommend applying for a dedicated Short Code in New Zealand.
Relevant content
- asked 3 months ago
AWS OFFICIALUpdated 2 years ago
What if the current country is not using a short code but a Sender ID, can we use this one to push the OTP messages to New Zealand? And a specific sender ID is currently not available within New Zealand.