How To: Business Marketing Messages - Send MMS

Written By Jexter Reyes (Administrator)

Updated at April 28th, 2026

Table of Contents

Objective Symptoms Eligibility Procedure Related Information Best Practices Escalation Information Escalation Information: SD3 Change Log

Objective

MMS (Multimedia Messaging) in Business Marketing Messaging lets you send a file attachment (like an image, PDF, or contact card) along with a subject line and message text—helpful for marketing, announcements, and richer customer communications.

Symptoms

I don’t see Attach message (MMS)
My file won’t upload
I’m trying to send MMS from my phone
I can’t receive MMS replies

Eligibility

Access to the Business Marketing Messaging web platform
MMS enabled on your account (feature must be activated)
Supported file types: .jpg, .png, .gif, .pdf, .vcf
File size: up to 450KB (maximum accepted size may vary by file format)

Procedure

IMPORTANT:

MMS costs more than standard SMS (billing rates may vary by plan).
There is no charge to receive MMS, but your account must have a dedicated number associated with it to receive MMS.
MMS cannot be sent from the mobile app—you must be logged into the web platform.

Open the MMS message builder
1. In the left menu, go to Messaging.
2. Select New message.
3. Choose the Attach message (MMS) tab.
Upload your media file
1. In the Media section, select Upload file (or drag and drop your file).
2. Upload one of the supported file types:
  - .jpg
  - .png
  - .gif
  - .pdf
  - .vcf
    
    TIP: Keep the file size within 450KB (maximum accepted size may vary by file format).
Enter a Subject for your MMS.

NOTE: Use Personalisation fields in the subject line (for example, location or contact details) if your workflow supports it.
Enter the message text that will accompany your attachment.

TIP: Optionally, you can use the built-in AI assistant to help draft content to match your attachment.
Send your MMS
1. Review the attachment, subject, and message content.
2. Select Send Now in the bottom-right corner.

Best Practices

Keep attachments lightweight: Smaller files send more reliably across carriers.
Make the subject meaningful: Use it to clarify what the attachment is.

EXAMPLE: “New Menu PDF”, “Event Flyer”, “Your Contact Card”
Pair media with a clear CTA: Tell recipients what to do next (reply, call, visit a link, etc.).

Escalation Information

Escalation Information: SD3

If you have any questions, concerns, or issues, contact the Service Desk III (SD3) team.

Change Log

Date	Description
Apr 28, 2026	Article revamped

cxdo Knowledge