Licensing for Office365 calls via Graph API

[peterpro]

Hello,

I have a licensing question regarding the use of Excel from Office365 in our application via Graph API.

Our organization is building a web application for businesses, which will be used by their employees. Users will upload .xlsx files, and our application, using Graph API with app-only access, will place the files in our organization's SharePoint Site and read calculated values from some Excel worksheet cells (again, via Graph API).

Are there any legal limitations or requirements in terms of licensing?

As an organization, we have the following licenses:

• Enterprise Mobility + Security E5
• Microsoft 365 Apps for Business
• Microsoft 365 Business Premium
• Microsoft Fabric (Free)

Thank you!

[#2]

@peterpro 

Please make sure your App-Only Access of license

[#3]

@Kidd_Ip thank you for the response!

Unfortunately, I am not quite sure what and where to check. I understand that my app is configured for App-Only Access, but I'm unclear on how to verify if the appropriate licensing is in place for this setup. Could you please provide more detailed guidance on the following points?

[#4]

@Kidd_Ip, could you elaborate on that, please? This question is blocking us from going to producton 😞