For some customers, billing is performed periodically so that all deliveries that become due up to a certain date are grouped in a collective bill and then sent off together.

Maintenance contracts do not only define the customer’s entitlement to services, but also describe the periodic payments for the contract items. The billing plan enables a flexible definition of the terms of payment:

Base date for the start of billing (for example, start of contract, installation date)
Horizon for the billing dates (for example, 3 months in the future, 1 year in the future)
Periodicity of the billing dates
Billing in advance or in retrospect
The system generates automatically the due billing documents on the basis of these parameters.

Prerequisites

A factory calendar must be created, containing special regulations instead of working days. These special regulations indicate the days for which billing creation should be used.
For example, if a bill is to be created on the last working day of the month, you enter this day as both the "Valid from" day and as the "Valid to" day. This day must be indicated as being the only working day.

The number of the factory calendar must be specified in the customer master record in the field Billing dates.

Process Flow
- You create a sales document.
- The system copies the billing date from the factory calendar and enters it in the following way as the date of the bill in the corresponding document:
- For order-based documents that are to be billed (credit and debit memo requests and returns) the billing date is copied into the sales document.
- For delivery-based documents that are to be billed (for example, standard orders) the billing date is first copied to the delivery. However, it is not displayed there.
- When the next billing date has been reached according to the factory calendar, the system displays the orders and deliveries that have accumulated in a billing due list.
- You can now perform billing.
 

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