# The `sendsavedmms` action

This action sends the saved MMS template, specified by an `mms-id`, to a single mobile number. The sender number must be one of the shortcodes/longcodes allowed for your account. The receiver number must be within the same country as the selected shortcode/longcode.

 Important:
Sinch will send an HTTP `GET` request to the server that is specified in the XML slide of the embedded images, videos, audios, and/or other object URIs to retrieve the contents of the media file. The HTTP response header Sinch receives from the server MUST contain the `Content-Length` field indicating the size of the resource. Otherwise, the API request will fail. Customers using CDNs that employ chunked transfer encoding may run into problems in which the server returns a `Transfer-Encoding` field with a value of `chunked` specified in the HTTP `GET` response, rather than the server returning `Content-Length`. If a `Transfer-Encoding` field with a value of `chunked` is specified in an HTTP, the API request will be rejected.

br
 Important:
All media files are expected to serve a valid content-type header (for example, text/plain, image/gif, audio/mp3, video/mp4, etc.). If a file server serves a file using the application/octet-stream content-type header instead, it may be rejected if the MIME type cannot be determined by other means.

## Fallback SMS considerations

If the MMS message is too large to be delivered or the carrier does not support MMS delivery, the API has an option to facilitate MMS delivery as fallback SMS. The fallback SMS consists of two parts: the **fallback SMS text** and the **fallback SMS link**.

### The fallback SMS text

The fallback SMS text is the SMS text that will be sent instead of the MMS. The fallback SMS link, used to view the MMS content, is also sent. You can dynamically change the fallback SMS text by populating the `fallback-sms-text` field. If `disable-fallback-sms` is set node is set to `true`, then the fallback SMS text is not required. By default, the fallback SMS is enabled. If the MMS was attempted to be sent as SMS and the fallback SMS is disabled, the message sending will fail.

### The fallback SMS link

The fallback SMS link is the link that hosts the MMS content. The fallback SMS link may be disabled by setting `disable-fallback-sms-link` to `true`; in this case only the fallback SMS text is sent. By default, we always send the fallback SMS link along with the fallback SMS text.



The fallback SMS link expiration defines how long the MMS sent as SMS using this `mms-id` is valid and viewable on the mobile browser. By default, it is set to one year if no value is passed. The maximum expiration duration cannot be more than one year.

## Special considerations

- Always use international number format. You must use the international format when sending MMS. International format includes both the country code and the phone number. We use the country code to determine routing of the message. There should be no dialing prefixes (for example, no `00` or `001`). For example, the US number `774-555-9144` in international number format would be `17745559144` because the USA country code is `1`.


- You can dynamically send custom text for each slide by populating the `custom-slides` object. Any `custom-slides` object must include the `custom-message-text` and `custom-slide` fields. Line breaks are supported in the custom slide texts of the MMS.


## Sample payload and response

## Request schema

### Response schema