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Aria Knowledge Central

Payment Plan Payment Application Scenarios

This article explains how Aria's payment plan system allocates customer payments across outstanding invoices and scheduled payment plan installments, covering scenarios where a payment is less than, or greater than, the total amount due—using both First-In-First-Out (FIFO) and First-Due-First-Out (FDFO) prioritization logic.

Overview

Aria applies payments for payment-plan-related invoices as exemplified in the following scenarios.

Payment Application Scenarios

Use Case #1: Payment is less than the due amount.

A customer has a subscription for 'Bundle 5G Internet' and has not been paying his last two invoices, past due balance of $300. Below are the invoice details: 

Date Invoice No. Master Plan Instance Due Due Date
1-Jan-25 Invoice #1 Bundle 5G internet  $ 150.00 20-Jan-25
1-Feb-25 Invoice #2 Bundle 5G internet  $ 150.00 20-Feb-25

On Feb 25th, he called and negotiated a payment plan to pay off his outstanding $300 balance starting with his next anniversary statement (March 1st). The payment plan schedule is as follows:

Seq. No. Notification Date Due Due Date
1 1-Mar-25  $ 60.00 21-Mar-25
2 1-Apr-25  $ 60.00 21-Apr-25
3 1-May-25  $ 60.00 21-May-25
4 1-Jun-25  $ 60.00 21-Jun-25
5 1-Jul-25  $ 60.00 21-Jul-25

On March 1st, a new statement was generated for his March subscription of 'Bundle 5G internet' and a payment plan sequence #1, with total due balance of $210.

Date Invoice No. / Payment Plan Seq No. Due Due Date
1-Mar-25 Payment Plan Seq #1 (invoice #1)  $ 60.00 21-Mar-25
1-Mar-25 Invoice #3  $ 150.00 21-Mar-25
     $ 210.00  

On March 22, he makes a payment of $175 without specifying anything (thus payment application will be driven by client-level configuration). The system will allocate payment to due charges as follows:

  • First-In-First-Out (FIFO): because the payment plan sequence #1 and invoice #3 are communicated on the same day, the system will prioritize the oldest charge first to be applied.
    Date Invoice No. / Payment Plan Seq No. Due Due Date Payment Remaining
    1-Mar-25 Payment Plan Seq #1 (Invoice #1)  $ 60.00 21-Mar-25 $ 60 $ 0
    1-Mar-25 Invoice #3  $ 150.00 21-Mar-25 $ 115 $ 35
         $ 210.00   $ 175  

    Since Invoice #3 is not fully paid by the due date, Aria will evaluate the remaining due amount for dunning.

  • First-Due-First-Out (FDFO): because those two charges are due on the same day, payment plan Seq #1 (effectively paying Invoice #1) also takes priority over a new invoice because it is the oldest charge.

    In a different case where the new invoice and payment plan are communicated on different dates and due on different dates, Aria will apply the payment differently.

Use Case #1a: A new invoice and payment plan Seq #1 have different billing dates and due dates.

For example:

In March, Aria communicates the following charges to the customer. While the new invoice is communicated earlier than payment plan Seq #1, it is due later. Below are the details:

Date Invoice No. / Payment Plan Seq No. Due Due Date
1-Mar-25 Invoice #3  $ 150.00 21-Mar-25
5-Mar-25 Payment plan Seq #1 (Invoice #1)  $ 60.00 10-Mar-25
     $ 210.00  

On March 22, he makes a payment of $175 without specifying anything. Aria will apply payment to due charges as follows:

  • First-In-First-Out (FIFO): Aria will apply $175 payment in the following order:
    Date Invoice No. / Payment Plan Seq No. Due Due Date Payment Remaining
    1-Mar-25 Invoice #3  $ 150.00 21-Mar-25 $ 150  $ -
    5-Mar-25 Payment Plan Seq #1 (Invoice #1)  $ 60.00 10-Mar-25 $ 25  $ 35.00
         $ 210.00   $ 175  
  • First-Due-First-Out (FDFO): because the payment plan sequence #1 is due earlier, Aria will prioritize it for payment first. The system will apply the $175 payment received on March 22nd in the following order:
    Date Invoice No. / Payment Plan Seq No. Due Due Date Payment Remaining
    5-Mar-25 Payment Plan Seq #1 (invoice#1) $ 60.00 10-Mar-25 $ 60  $ -
    1-Mar-25 Invoice #3 $ 150.00 21-Mar-25 $ 115  $ 35.00
         $ 210.00   $ 175  

Use Case #2: Payment exceeds the due amount.

This use case is similar to Use Case #1, but here the customer makes a payment that exceeds the due amount. Below are the details:

A customer has a subscription for 'Bundle 5G Internet' and did not pay his last two invoices, resulting in a past due balance of $300. Below are the invoice details:

Date Invoice No. Master Plan Instance Due Due Date
1-Jan-25 Invoice #1 Bundle 5G internet  $ 150.00 20-Jan-25
1-Feb-25 Invoice #2 Bundle 5G internet  $ 150.00 20-Feb-25

The payment plan schedule is as follows:

Seq. No. Notification Date Due Due Date
1 1-Mar-25  $ 60.00 21-Mar-25
2 1-Apr-25  $ 60.00 21-Apr-25
3 1-May-25  $ 60.00 21-May-25
4 1-Jun-25  $ 60.00 21-Jun-25
5 1-Jul-25  $ 60.00 21-Jul-25

On March 1st, Aria generates a new statement for his March subscription of 'Bundle 5G internet' and a payment plan Seq #1, with a total due balance of $210.

Date Invoice No. / Payment Plan Seq No. Due Due Date
1-Mar-25 Payment Plan Seq #1 (Invoice #1)  $ 60.00 21-Mar-25
1-Mar-25 Invoice #3  $ 150.00 21-Mar-25
     $ 210.00  

On March 22, he makes a payment of $300 without specifying anything. Aria will allocate payment to charges that are due, then future payment plan sequences. 

Date Invoice No. / Payment Plan Seq No. Due Due Date Payment Remaining Due
1-Mar-25 Payment Plan Seq #1 (Invoice #1)  $ 60.00 21-Mar-25 $ 60 $ 0
1-Mar-25 Invoice #3  $ 150.00 21-Mar-25 $ 150 $ 0
1-Apr-25 Payment Plan Seq #2 (Invoice #1)  $ 60.00 21-Apr-25 $ 60 $ 0
1-May-25 Payment Plan Seq #3 (Invoice #1)  $ 60.00 21-May-25 $ 30 $ 30
        $ 300  

Since payment plan Seq #2 is fully paid, nothing will be due for the payment plan on the next statement (April 1st), and only a partial amount is due for Seq #3 on his May 1st statement.

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