
Hi @Nour Aldeen Aljawhari ,
For Question 1:
You can refer to this support article about Deploy Office 2019 (for IT Pros):
https://learn.microsoft.com/en-us/deployoffice/office2019/deploy
For Question 2:
You need to buy volume licensed versions of Office 2019 to activate, there are 3 different methods of activating volume licensed versions of Office please refer to this support article:
https://learn.microsoft.com/en-us/deployoffice/vlactivation/plan-volume-activation-of-office?toc=/deployoffice/office2019/toc.json
Please note, licenses purchased via the Microsoft Product Services Agreement (MPSA) are managed in a separate site - the Microsoft Business Center.
Hope the information is helpful.
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