If You Deal With TBFU Service Providers, You Cannot Reopen Bills
Refer to Bill Lifecycle for information about reopening previously completed bills.
If your organization deals with They Bill For Us (TBFU) service providers, a great deal happens when a bill is completed (e.g., the receivable is transferred from the customer to the service provider, we may mark the bill segments and adjustments for routing to the service provider, etc.). These things cannot be undone and therefore the system will not let you reopen bills when these things have occurred.
Technical rule. The specific rule that prevents the reopening of bills is as follows: if a bill contains a service agreement whose SA type has one or more bill completion algorithms, the system will not allow the bill to be reopened. Refer to SA Type - Algorithms for more information about bill completion algorithms.