FAQ

Commercial

How many accounts can I have?

One account can have multiple APIs keys.
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Please contact your account manager to learn more.

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Other

How can I register a Sender ID?

How many accounts can I have?

How long will it take for an A2P SMS to be sent?

How do I register a Sender ID?

How do I send an SMS?

How does an enterprise connect with Rakuten CPaaS SMS API?

How many characters can be sent in a single message?

What happens if a user’s cell phone is temporarily out of reach?

How much does it cost for users roaming overseas to receive SMS?

If a user fails to receive an SMS, how can I check the cause?

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SMS Overview

Are A2P SMS and P2P SMS the same?

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

See the category list

SMS Delivery Method

Are there any restrictions on the content that can be sent?

Can I send promotional/marketing A2P SMS?

See the category list

SMS Features

Are emojis supported? What happens if I try to send an emoji?

Can A2P SMS be sent outside Japan?

See the category list

Error & Logs Retry

Can I download statistical results?

Where can Call Detail Records (CDRs) be accessed?

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Commercial

How can I delete my account?

How many accounts can I have?

See the category list

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Send SMS

FAQ

Commercial

How many accounts can I have?

Other

How can I register a Sender ID?

How many accounts can I have?

How long will it take for an A2P SMS to be sent?

How do I register a Sender ID?

How do I send an SMS?

How does an enterprise connect with Rakuten CPaaS SMS API?

How many characters can be sent in a single message?

What happens if a user’s cell phone is temporarily out of reach?

How much does it cost for users roaming overseas to receive SMS?

If a user fails to receive an SMS, how can I check the cause?

KEYWORD Search by keyword

CATEGORY Search by category

SMS Overview

Are A2P SMS and P2P SMS the same?

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

SMS Delivery Method

Are there any restrictions on the content that can be sent?

Can I send promotional/marketing A2P SMS?

SMS Features

Are emojis supported? What happens if I try to send an emoji?

Can A2P SMS be sent outside Japan?

Error & Logs Retry

Can I download statistical results?

Where can Call Detail Records (CDRs) be accessed?

Commercial

How can I delete my account?

How many accounts can I have?

Apply for a free trial