Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Glad to hear that! In general, we do support MP4 files, however, depending on the program you use to create it, it could be using a codec that we don't support. Converting it to another file format, as you have done, is one way to work around this. Converting it back to an MP4 using a different program will probably also allow it to work. Let us know if you have any other questions.
Jason