@Rajaniesh Kaushikk Thank you for post your query!
Billing Account ID or EA enrollment # should be available if you have access to the complete Microsoft Customer Agreement (MCA) or Enterprise Agreement (EA)
Azure portal should also show it - https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/view-all-accounts
Collect Billing account ID for Azure EA Account:
- Login to portal.azure.com as Enterprise admin.
- Go to cost management + billing and select a billing scopes.
- Now click on properties and copy Billing Account ID.
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