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FAQ

SMS Delivery Method

How does an enterprise connect with Rakuten CPaaS SMS API?

The connection to the service is made via API. The Sales team needs to issue an account first.
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For details, please refer to the API Documentation.

Other

Q

Why was my A2P SMS rejected?

Q

What kind of Sender ID are supported?

Q

What is the connection method to the API?

Q

What kind of content can be sent in an SMS?

Q

What happen if the user replies to a received SMS ?

Q

What are the billing rules?

Q

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

Q

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

Q

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

Q

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

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KEYWORD  Search by keyword

Sender ID
API
Cost
Base fee

CATEGORY  Search by category

SMS Overview

Q

What kind of content can be sent in an SMS?

Q

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

See the category list

SMS Delivery Method

Q

What is the connection method to the API?

Q

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

See the category list

SMS Features

Q

What kind of Sender ID are supported?

Q

What happen if the user replies to a received SMS ?

See the category list

Error & Logs Retry

Q

Why was my A2P SMS rejected?

Q

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

See the category list

Commercial

Q

What are the billing rules?

Q

Can I test my account before it is created?

See the category list
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