| Purchase User | The user who made the purchase. |
| Billing Month | The month in which the bill was issued. |
| Billing Date | The date on which the bill was issued. |
| Bill Type | The category of the bill, such as subscription or on-demand. |
| Product | The product for which the billing is applied, such as “ces”. |
| Region | The name of the region to which the resources are allocated, such as “us-west.” |
| Instance ID | A unique identifier for the specific instance being billed. |
| Bill ID | A unique identifier for the bill itself. |
| Instance Type | The type of the instance billed, such as “capacity” or “performance” for xstor. |
| Start Time | The beginning time of the usage period for which the bill is generated. |
| End Time | The ending time of the usage period for which the bill is generated. |
| Usage Duration | The total duration of the usage period, in seconds. |
| Total Amount | The total listed price before any discounts. |
| Discount Amount | The amount reduced from the total due to applied discounts. |
| Payable Amount | The final amount to be paid after all discounts have been applied. |
| Time Unit | The unit of time used for billing purposes, such as hour, day, or month. |
