How many instances of a CoE per tenant?

[Lisajo]

I have a tenant that includes multiple unique and independent business (80+). Is there supposed to be one CoE per tenant or does it make any sense to have 1 for each company? The documentation reads as if there is an assumption that there is only 1 that serves the whole tenant, and I am in agreement with that approach, but I am getting dissenting points of view from the different companies who want to have their own. So, I could use some advice, pros/cons, best practices, lessons learned, pitfalls, things to avoid, etc. to help me establish the best, manageable, secure approach that I can present to the companies in a way that makes sense to them.  

Thank you!

[v-siky-msft]

Hi @Lisajo .

The use of the COE depends on your purpose. Maybe this article and PPT can be of some help to you.

What is a Center of Excellence? Intro to Power Platform Centre of Excellence Starter Toolkit 

Sik

[Jeff_Thorpe]

In general the CoE Starter Kit is set-up with a tenant scope.  In theory you could install the CoE Starter kit as many times as you want but I believe each install would need its own environment. Then you would have to make some changes so that each install only ran against environments that were associated with a particular business. We have only installed the Core Components and Audit Logs so far and I can't image the extra work that would be involved to split that out by business and supporting it. If it is a reporting/dashboard issue maybe it would be simpler to create some custom reports instead.