First, understand I am not trying to brush you off but rather get you the fastest and most effective help.
MS Office/Outlook is not an Apple product and there are not as many Office users active here as one would think. This, MS Office questions posted in Apple’s forums can linger here a long time and still get no answer.
I believe you will be better and faster served by asking in Microsoft's Office forums. Start here:
https://answers.microsoft.com/en-us/msoffice
Be sure to include "mac" in your search string to limit the search to Outlook Mac topics. Similarly, if you post a question include "Mac" in the title. That makes it easier for other Mac users to search for new posts.
I believe you will find the contributors there knowledgeable and very helpful, much more so than MS's Windows-centric support documents.