Activate Office 2019 Pro Plus
Keep in mind that you should have installed the volume edition. Or convert your edition first.
Open command prompt as admin and type:
cd "C:\Program Files\Microsoft Office\Office16"
cscript /nologo OSPP.VBS /inpkey:NMMKJ-6RK4F-KMJVX-8D9MJ-6MWKP
cscript /nologo OSPP.VBS /sethst:<IP>
cscript /nologo OSPP.VBS /setprt:1688
cscript /nologo OSPP.VBS /act
View Office 2019 Activation Status
Open command prompt as admin and type:
cd "C:\Program Files\Microsoft Office\Office16"
cscript /nologo OSPP.VBS /dstatus
Visio Professional 2019: 9BGNQ-K37YR-RQHF2-38RQ3-7VCBB