Returns the URL of MMS content sent from a mobile-originated (MO) message. A mobile-originated message is a message sent from the mobile device of a subscriber to your SMS phone number. Compare MO messages to mobile-terminated (MT) messages, which are messages that you send to a subscriber’s mobile device.
You can only use this AMPscript function in MobileConnect. You can’t use this function in email messages, landing pages, or other content types.
MMS_Content_Url() function accepts one parameter.
position(integer): Required. The index of the MMS content to return the URL for. The first MMS content item in the message has an index of 0, the second item has an index of 1, and so on.