Let's look at some examples for:

To determine the starting interval, the system finds the first interval after the cutoff time on the billing start date. The system uses all the intervals up to and including the cutoff time for the DAY AFTER the billing end date.

To determine the starting interval, the system finds the first interval after the cutoff time on the DAY BEFORE the billing start date. The system uses all the intervals up to and including the cutoff time for the billing end date.

When billing calculates the consumption period for the very first bill segment for your service agreement, it uses a flag on your SA type to correctly calculate the initial consumption period . For your interval billing service agreements, you typically configure your SA types to indicate that the start of the consumption period for the first bill should include the SA start date unless this is a 'back-to-back' situation (i.e., a previous customer was already billed for that day as its end date).

Let's look at an example. Imagine your SA type is configured to Add 1 Day for Back-to-back and this is not a back-to-back situation. Also imagine that your service agreement has the following defined:

The start period for the consumption period would be set to April 1, 2003; 2am.

Imagine the same SA exists, but this is a back-to-back situation. In other words, the previous customer ended service on April 1, 2003. Assuming the previous customer has the same start day option and cutoff time, they are billed through April 2, 2003; 2am. Refer to Current Day Option for more information. In this case, billing calculates the start period for the consumption period as April 2, 2003; 2am.