Functionality
This module is the sample module for a complete check on the billamounts.
The system carries out the following checks:

• Net amount check


• Gross amount check


• Check whether sales tax amount is plausible


• Check whether an integrated company liable to sales tax exists

If this is the case, then no sales tax can be calculated.
Here, the item net amounts are added, the gross amount and sales taxamount are calculated from the resulting sum and are compared with theamounts from the total line. Should differences occur, then thedifference values are compared with the permitted tolerances from theservice provider agreement or the check framework. If the differencesexceed the permitted torlerance, then error messages are issued.
If an integrated company exists, which is liable to sales tax, and a taxamount was determined, then an error message is issued.

Notes
Budget billing amounts and charges are not considered separately in thismodule.