In your previous system, it was recorded that a member had a credit of $600 applied to 13/14 Religious School Tuition, but no charges were entered because it has yet to be decided how much will be charged for 13/14 tuition. This credit was imported as an "adjustment-" contribution of $600 towards 13/14 Religious School Tuition.
During the import process, a file is prepared with the list of credit balances that were excluded from import (in this example, the list would show a $600 credit balance for the member for 13/14 Religious School Tuition). After import, it was decided that 13/14 Religious School Tuition will be $1,000 for the year.
In this instance, the credit balance is a result of a non-moentary credit against which no charges yet exist. Changing the financial type to "prepayment-" would incorrectly indicate that it was a monetary donation, so leaving this transaction as an "adjustment-" would be the correct thing to do. The question remains as to whether your organization would require that the adjustment be applied to an obligation (either a pledge or a recurring credit card contribution), or whether it is sufficient that the obligation be created less the amount of the credit already applied. The examples contained in the following pages are offered as clarification of the options available, but it is up to your organization to determine which would be the correct one to use for your business practices.