When you run pool prebilling, the system conducts pricing again for the pool contract. In the process, the system considers credits with type P from the credit overview of single contracts. For pool prebilling, the system selects only usage items from single contracts for which the normal usage prebilling was already run. You can further define the usage items that are to be used with pool prebilling conditions. To represent the single contracts correctly in the results display, the system redistributes the calculated values to the single contracts after pool calculation is complete.

The billing process uses the data that has already been calculated in prebilling, only recalculating taxes in the process. The main advantage of the prebilling approach is that you can already use the values from the billing request items in your accounting system in order to post the accruals. Furthermore, prebilling is the only way to redistribute the values back to the single contracts.

Pool prebilling for pool contracts can be scheduled periodically with a batch program. You can use a second program to separate the redistribution to the single contracts from pool prebilling. We recommend this approach for large pool contracts, to reduce the load on the system.