Billing Profiles, Period Billing Basis field on Window 2 of 3, enable you to choose the type of period billing: Equal Period Billing, Monthly Billing, or No Period Billing. All periods must have a beginning and ending date for the system to calculate the amounts.
No Period Billing The bill represents exactly the amount of insertions eligible for billing at that time.
Monthly Period Billing Requires Media to perform several calculations. The amount to be billed for the bill month is determined by multiplying the daily rate for the insertions by the number of days in the corresponding month.
Equal Period Billing Calculates the periods by dividing the total amount of days to be billed by 30 to determine the number of periods to use, and then bills the same amount for every month to be billed. If the remainder from this division is equal to or greater than 15, then the number of periods is increased by one.
Example of Equal Period Billing:
Duration of the insertion in days is calculated by getting the duration between the beginning and ending dates of the buy.
Daily rate is determined by dividing the billable amount of the buy by the duration of the insertion. The duration of the insertion is 182 days.
Divide the 182 days by 30 = 6 months of billing, the remainder of 2 is absorbed..
The total cost of the buy is billed in equal amounts across the 6 months of billing.
The final period to be billed for this insertion compensates for any rounding issues.