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Original
2026-01-01
Modified
2026-03-10
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<p><strong>Mobile originating (MO)</strong>indicates a message was sent from someone’s personal mobile device to an SMS marketing platform. MO messages are typically delivered using the<a>Short Message Service (SMS)</a>protocol, which allows brands to interact with their audience via text.</p>
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<p><strong>Mobile originating (MO)</strong>indicates a message was sent from someone’s personal mobile device to an SMS marketing platform. MO messages are typically delivered using the<a>Short Message Service (SMS)</a>protocol, which allows brands to interact with their audience via text.</p>
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<p>In<a>mobile marketing</a>, an MO SMS message is any inbound text from a customer. For example, the MO message can be a person opting in via a keyword, chatting with your customer support team, or texting you their preferences.</p>
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<p>In<a>mobile marketing</a>, an MO SMS message is any inbound text from a customer. For example, the MO message can be a person opting in via a keyword, chatting with your customer support team, or texting you their preferences.</p>
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<h2>How do MO messages work?</h2>
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<h2>How do MO messages work?</h2>
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<p>Here’s an example of an MO message in practice:</p>
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<p>Here’s an example of an MO message in practice:</p>
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<ol><li>Your brand sends a<a>promotional message</a>instructing SMS subscribers to reply with a certain<a>word</a>to trigger an action.</li>
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<ol><li>Your brand sends a<a>promotional message</a>instructing SMS subscribers to reply with a certain<a>word</a>to trigger an action.</li>
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</ol><p><strong>Example:</strong>“Send DISCOUNT to 12345 for a 30% discount on all sweaters! Offer valid today only.”</p>
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</ol><p><strong>Example:</strong>“Send DISCOUNT to 12345 for a 30% discount on all sweaters! Offer valid today only.”</p>
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<ol><li>Subscribers send an MO message that contains the keyword DISCOUNT to<a>short code</a>12345.</li>
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<ol><li>Subscribers send an MO message that contains the keyword DISCOUNT to<a>short code</a>12345.</li>
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<li>Subscribers receive an SMS reply from your brand confirming the discount.</li>
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<li>Subscribers receive an SMS reply from your brand confirming the discount.</li>
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</ol><p><strong>Example:</strong>“Use discount code WARM30 to redeem your 30% discount on your next sweater order. Stay warm!”</p>
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</ol><p><strong>Example:</strong>“Use discount code WARM30 to redeem your 30% discount on your next sweater order. Stay warm!”</p>
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<p>In the example above, the second step in the sequence is an MO message sent to a brand’s registered short code.</p>
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<p>In the example above, the second step in the sequence is an MO message sent to a brand’s registered short code.</p>
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<h2>What’s the difference between mobile originating and mobile terminating messaging?</h2>
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<h2>What’s the difference between mobile originating and mobile terminating messaging?</h2>
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<p><a>Mobile terminating (MT)</a>refers to a message sent from an application or a brand that is delivered (terminates) to a subscriber’s mobile device. It can be a standalone message or part of a message sequence as a response to an earlier MO message.</p>
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<p><a>Mobile terminating (MT)</a>refers to a message sent from an application or a brand that is delivered (terminates) to a subscriber’s mobile device. It can be a standalone message or part of a message sequence as a response to an earlier MO message.</p>
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<p>In the example above, the first and third step are MT messages.</p>
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<p>In the example above, the first and third step are MT messages.</p>
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<p>Ready to create two-way communication between your brand and your audience?<a>Sign up for Klaviyo</a>and use short codes, custom keywords, and automated flows to grow revenue with SMS today.</p>
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<p>Ready to create two-way communication between your brand and your audience?<a>Sign up for Klaviyo</a>and use short codes, custom keywords, and automated flows to grow revenue with SMS today.</p>
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