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To illustrate how the payments work, consider a sample customer with 4 invoices outstanding - 2 in January 2017, and 2 in February 2017, as follows:
Invoice
1) Enter the account number for the payment. You can browse the account master database by pressing the search button 
next to the entry field.
2) Enter the Payment number. A Payment number will be automatically generated if the field is left empty. This is controlled via the "Special Numbers" database within Rx-Universe. There are several Special Numbering sequences that can be used to automatically generate a payment number, select the one best suited to your labs operation. The special numbers that will be checked to generate a payment number are as follows and will be searched in sequence for a potential match; "ARPMT", "CREDIT" and "INVCE".
Note that the Payment number needs to be unique. It is the key of reference that is used in the invoice database for the customer orders, therefore it cannot be a duplicate of an order number, or a debit note or credit note.
Enter the payment date. Note that a warning will be displayed if the date is in the future. Older dates are allowed, if they are within the current period (date is not older than or equal to the last completed month).
Enter the payment reference, this field automatically defaults to "Payment", but can be changed by the user.
Enter the document number. This would normally be the check number, deposit number, etc.
Enter the payment amount. 805665 shipped 01/14/2017 for $76.00
Invoice 874555 shipped 01/31/2017 for $28.00
Invoice 875102 shipped 02/17/2017 for $53.00
Invoice 888100 shipped 02/25/2017 for $40.00
These transactions will show in the A/R Transactions window as:
The customer is configured to receive a 10% discount on their Rx pricing if they pay by the 10th of the month following the statement. So, in the examples above, invoices 805665 and 874555 would receive a 10% discount if payment on them is made on or before 10 February 2017. Invoices 875102 and 888100 would receive the 10% discount if they are paid before 10 March 2017.
On the January statement for this customer, the first two invoices will show, with the discount they are eligible for if paid before 10 Feb, as follows:
The customer is set up to automatically apply payments; assuming that the customer sends in a payment for $93.60 on 8 February, when the payment is entered, Rx-Universe will automatically apply the payment against the oldest invoices, and since the payment date is earlier than the discount date, will automatically take the applicable discounts on the invoices; the screen would look similar to the following:
The individual entries for discounts and payments can be modified, if desired. The "Remaining" box shows how much of the payment remains to be applied.
Taking the same scenario as above, but with the customer configured NOT to automatically apply payments,let's assume the customer sends in a cheque for $123.70, with instructions to pay invoices 805665 and 875102. Perhaps there is a dispute about the charge for 874555, and that invoice is omitted from the payment instructions.
When the $123.70 payment is entered, nothing is automatically applied. The lab can go to the "disc taken" column of the first invoice, and press enter - since the payment date is beyond the discount date for that invoice, no discount is applied (the lab can over-ride this if desired by entering in a discount amount). Tabbing to the payment entry for that invoice, and pressing enter, will default the payment to the full amount of the invoice:
Let's skip invoice 874555, since it wasn't listed on the cheque stub, and go to 875102, which was listed. When we press enter on the discount taken column, the eligible discount will show, since the payment has come in before the discount date for this particular invoice. The payment will default to the balance owing for the invoice (which is also the balance left on the payment, since the customer paid the invoices in full):