Clarification on StorageQuota and BonusStorageQuotaMb in SharePoint Online (CSOM / PowerShell)

Hi everyone,

I’ve been using CSOM and the Get-SPOTenant PowerShell cmdlet to retrieve storage-related data for my SharePoint Online tenant.

I noticed that the StorageQuota property accurately reflects the total storage available. However, I plan to purchase additional SharePoint Online storage and would like to clarify:

Will the newly purchased additional storage be included in the value returned by the StorageQuota property?

I also came across another property called BonusStorageQuotaMB — could someone please explain its purpose and how it differs from StorageQuota ?

Understanding how these properties behave is important for me to monitor and report tenant storage accurately.

Thanks in advance for your insights!