0017886: 3.0MP0 Use available credit is not working correctly

Description

When using a credit, the deduction is not done and the credit is not being used.

See screenshot

Steps To Reproduce

With F&B US, Inc. - Finance & HR role, Organization F&B US, Inc.:
1. First you start by adding 2 Sales invoices:
   Go to Sales Invoice and create a new record.
In the main tab:
Organization = F&B US, Inc.,
Transaction Document = US AR Invoice,
Business Partner = Healthy Food Supermarkets, Co.,
Payment Terms = 30 days,
Payment Method = Check
Go to the [Lines] tab:
Product = Cola,
Invoiced Quantity = 500
back to the main tab:
Verify that the Total Gross Amount is 431.60 USD.
Complete the invoice.
2. In the same screen you add the second sales invoice.
   Create a new record.
In the main tab:
Organization = F&B US, Inc.,
Transaction Document = US AR Invoice,
Business Partner = Healthy Food Supermarkets, Co.,
Payment Terms = 30 days,
Payment Method = Check
Go to the [Lines] tab:
Product = Lemonade,
Invoiced Quantity = 100
back to the main tab:
Verify that the Total Gross Amount is 86.32 USD.
Complete the invoice.
3. The customers has paid for the sales invoices. Go to the Payment In screen
            Create a new record.
In the main tab:
Organization = F&B US, Inc.,
Received From = Healthy Food Supermarkets, Co.,
Payment method = Check
Deposit to = USD - US Bank - Account 1,
Amount = 800
Save record.
Click the Add Details button
Verify that the following is selected:
both of the Sales Invoices boxes
Leave the credit to be used later option

Click the Process button
choose the option Process Received Payment(s) and Deposit and click the OK button

The payments are created and the information is displayed in the Sales Invoice screen in the [Payment In Plan] and [Payment In Details] tabs.
4. At some point the customer buys more products and you add another Sales Invoice:
   Go to the Sales Invoice screen and create a new record
In the main tab:
Organization = F&B US, Inc.,
Transaction Document = US AR Invoice,
Business Partner = Healthy Food Supermarkets, Co.,
Payment Method = Check
Go to the [Lines] tab:
Create a new record
Product = Ale Beer,
Invoiced Quantity = 100
Net Unit Price = 2.04 (overwrite the price with this amount if something else appears on your screen),
Save the record
back in the main tab:
Verify that the Total Gross Amount is 212.16 USD.
Complete the invoice
The customer has a credit that can be used for this invoice.
You create the payment directly on the invoice:
Click the Add Payment In/Out button
5. In the pop up:
select the checkbox Use Available Credit (at the right top)
select the option Refund amount to customer

This means that you will use the credit amount of 282.08 to pay this invoice amount of 212.16 and that the rest amount will be refunded to the customer.
Click the Process and OK buttons.
The confirmation message gives the number of the created payment and of the refund payment

THIS IS GOING INCORRECT. INSTEAD OF 282.08 - 212.16, THE 282.08 IS STILL THERE AS CREDIT AND WHEN THE REFUND IS CREATED, IT'S FOR THE FULL 282.08.

Issue History
Date Modified	Username	Field	Change
2011-07-05 10:54	RenateNieuwkoop	New Issue
2011-07-05 10:54	RenateNieuwkoop	Assigned To	=> eduardo_Argal
2011-07-05 10:54	RenateNieuwkoop	File Added: 050711AvailableCredit.png
2011-07-05 10:54	RenateNieuwkoop	Modules	=> Core
2011-07-05 12:31	dmitry_mezentsev	Note Added: 0038767
2011-07-05 12:32	dmitry_mezentsev	Status	new => closed
2011-07-05 12:32	dmitry_mezentsev	Resolution	open => no change required

Notes
(0038767) dmitry_mezentsev (developer) 2011-07-05 12:31	Renate, From the inputs you defined in the screen the result is correct. Actual Payment In is filled in with the invoice number so system treats it as received amount + the fact that you want to use credit. If you just want to use credit leave Actual Payment In as 0, then it will be used and you will see the difference.

Relationships [ Relation Graph ] [ Dependency Graph ]