Sharepoint Integration

We have requirement where schedule activity has to save the excel document into folder or sharepoint from where User can refer any time in future.

This is big file and need to run Quarterly so doesn't want to be into Appian forever.

While following the steps mentioned in https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs#setting-up-an-app-only-principal-with-tenant-permissions

to generate clinet id etc.

I am getting a message that Tenant Admin has to approve the permission.

Now while going thru share point offering in our organisation, seeing below-

"Apps requested from the sharepoint are not supported. The interface allows requesting the Apps from share point store and send approval to share point admins, since it is not supported feature, request  will not be consideredor approved"

Does that mean we can't do Appian + Sharepoint integration in our organisation?

We use SPOL(Sharepoint Online)