No invoice before the gap

When no invoice is available before the gap, this condition impacts the calculation of an accrual value for the month with the gap.

The scenario typically occurs when an account is new. The account has an invoice for the month after the gap but has no invoice for the months before the gap. In this case, accruals are based on invoice data for the month after the gap.

Table 1 describes the scenario in the weighted average methodology that result in the month after the gap being used to calculated accruals.

Table 1. Scenario

Scenario	Month before	Same month last year	Month before same month last year	Month after
1

Table 2 presents the calculation that is applied when the month after the gap is used in the accrual calculation.

Table 2. Calculation example

Month with gap	Calculation
March 2023	Daily average value for April 2023 * number of missing days in March 2023