Add credentials of Azure reseller customers for billing only

For Azure partners (CSP account), a customer can display a billing dashboard without using Azure's compute features in the platform.

There are two ways to add Azure customer accounts for billing only:

1. Add the tenant ID so Abiquo will automatically onboard the customer and all their subscriptions into a single tenant. See Automatically onboard Azure customers

2. Add a subscription to a standard tenant. For this configuration we recommend that you use a main keynode tenant for the non-subscription costs. See Add a subscription of an Azure reseller customer for billing only.

For full details of how to create a tenant hierarchy for CSP resellers, see Onboard an Azure CSP or AWS organization account.