MMS Best Practices

Prompt.io supports MMS (Multimedia Messaging Service), enabling organizations to send images, videos, and other media files to their contacts. Crafting visually compelling and impactful media while adhering to the strict size limitations imposed by carriers is a skill in itself. Use this document not only to understand what is supported by our platform and upstream partners but also to learn what is recommended by industry experts. For example, just because you can send a 1600-character MMS message doesn’t necessarily mean you should. Knowing the difference between what’s possible and what’s optimal is crucial for creating an effective MMS campaign.