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Why was my A2P SMS rejected?

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What is the connection method to the API?

What kind of content can be sent in an SMS?

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What are the billing rules?

What is the maximum number of concatenated A2P SMS parts that can be sent in a single message?

If I want to send SMS outside of Japan, does the cost differ for each country?

Why is the cost different between A2P SMS and P2P SMS?

To which handsets can SMS be sent? Are there any handsets that cannot receive them?

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SMS Overview

What kind of content can be sent in an SMS?

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What is the connection method to the API?

Is it necessary to specify the carrier when sending the API?

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SMS Features

What kind of Sender ID are supported?

What happen if the user replies to a received SMS ?

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Error & Logs Retry

Why was my A2P SMS rejected?

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Apply for a free trial

FAQ

Commercial

Can I test my account before it is created?

Other

Why was my A2P SMS rejected?

What kind of Sender ID are supported?

What is the connection method to the API?

What kind of content can be sent in an SMS?

What happen if the user replies to a received SMS ?

What are the billing rules?

What is the maximum number of concatenated A2P SMS parts that can be sent in a single message?

If I want to send SMS outside of Japan, does the cost differ for each country?

Why is the cost different between A2P SMS and P2P SMS?

To which handsets can SMS be sent? Are there any handsets that cannot receive them?

KEYWORD Search by keyword

CATEGORY Search by category

SMS Overview

What kind of content can be sent in an SMS?

Why is the cost different between A2P SMS and P2P SMS?

SMS Delivery Method

What is the connection method to the API?

Is it necessary to specify the carrier when sending the API?

SMS Features

What kind of Sender ID are supported?

What happen if the user replies to a received SMS ?

Error & Logs Retry

Why was my A2P SMS rejected?

My SMS request was rejected due to invalid authentication. What should I do?

Commercial

What are the billing rules?

Can I test my account before it is created?