Silent Install of Adobe Acrobat 2017/2020

Hi

I've been tasked with creating some silent install jobs for Adobe Acrobat 2017/2020 Std & Pro using Microsoft Endpoint Configuration Manager, which I'm very new at.

We have a volume licence for the products and I've been provided with the keys, so I've downloaded the install files and tried creating mst files, including the licence keys. However, when I test my command line, the software installs but, when I run it, it says the product is a trial version and I get asked for the licence key once more. The command line I am using is as follows;

msiexec.exe /i Acropro.msi /q /norestart TRANSFORM=Acrobat_2017_Std.mst

After running this, I then run a patch file to bring the software up to date.

As part of the mst file, I have also tried granting offline exception but I am still prompted for the key when I first try to run it.

Am I missing something with regard to the mst file or my command line?

Many thanks.