How to build Payments "In Advance" vs Payments "In Arears"

How to build Payments "In Advance" vs Payments "In Arears"

In ASPIRE, the user is able to build a payment stream with payments "in advance" of the billing period or the user can build a payment stream with the payments "in arears" of the billing period.  

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Please see the attachment for detailed information how how to build a payment stream with payments "in advance" vs payments "in arears".