URGENT - Windows Server 2022 External Connector License case

Dear community,

We are an Indirect Provider in CSP from Greece, and we would like to have your significant input around a very big case/project we are facing.

More specifically, one of our customers has their infrastructure collocated in a DataCenter through which he provides services to their end customers from the servers located in this collocation. Having said that, that customer asked to purchase licenses for "Windows Server 2022 External Connector". Sadly, we can see that this SKU is only available as a Perpetual License in CSP, something that based on our experience cannot be installed in collocated places, and the customer wants to purchase this license as a Software subscription.

After sharing the background of the story, could you please help us find propose the best fitting solution for our customer? We are talking about 300+ seats, and we are very anxious to provide the best solution to win the case.

Thanking you all in advance for allocating time to respond. Kindly raise any follow up questions to help you respond in the best manner.

Best,
Nick