Hi, Is it possible to enter a mac range when adding a device in the company property inventory in UPAM with a special character? regards

There is some Javascript validation and it is only possible to add one MAC address at once. If you really want do add a couple of devices you could import a (self generated) list that contains a range of your MAC addresses. But your are limited to 50.000 entries per import and it will result in a bunch of single company property entries (which you probably not want).

Thank you, I attached and excel file to generate MAC entries, I hope it helps.