Changing the Billing Day of Month

Salesforce Billing uses the order’s billing day of month to calculate the billing period and next billing date for each of its order products. The billing day of month also affects usage summary periods for usage products. When you change the billing day of month on an order product, consider how it can affect your billing timelines. (Salesforce Billing Managed Package)

Important If you change the billing day of month of an activated order, the order product’s next billing date is removed. So, before you change the billing day of month, change the activated order’s status to Draft, delete the billing schedule of the order product, and then reactivate the order. After the order is reactivated, a billing schedule is created and the next billing date of the order product is recalculated. You can change the billing day of month only for the order products that have a Bill Through Date Override value.

• Changing the Billing Day of Month for Standard and Recurring Products
  A one-time order product’s next billing date inherits the order product’s start date. Recurring order products use the order’s billing day of month differently if the order product is billed in advance or billed in arrears. (Salesforce Billing Managed Package)
• Changing the Billing Day of the Month for Usage Products
  When you change the billing day of the month for a usage order product, the order product’s first usage summary covers a partial billing period. This way, Salesforce Billing can align the second usage summary to the new billing day of the month. If you change the order or order product’s start date so that its day value is different from the order product’s billing day of the month, the first usage summary covers a partial billing period for the same reason. To avoid partial period usage summaries, set your billing day of the month to the same day value as your order product’s start date. (Salesforce Billing Managed Package)