[jira] [Updated] (OFBIZ-6436) Different price Order vs. Invoice due rounding

["Michael Brohl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OFBIZ-6436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Brohl updated OFBIZ-6436:
---------------------------------
    Sprint: Community Day 2 - 2015, Community Day 3 - 2015, 2016 - OFBiz Community Day 4  (was: Community Day 2 - 2015, Community Day 3 - 2015)

> Different price Order vs. Invoice due rounding
> ----------------------------------------------
>
>                 Key: OFBIZ-6436
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-6436
>             Project: OFBiz
>          Issue Type: Improvement
>    Affects Versions: Release Branch 13.07, Release Branch 14.12, Trunk
>            Reporter: Ingo Wolfmayr
>            Assignee: Michael Brohl
>         Attachments: priceservices.patch
>
>
> When creating an order with the following data, invoice and order calculates different prices due to different rounding strategies:
> Example:
> Net price: 8,70
> Price Rule: 2 %
> Calc price: 8,526
> Order quantity: 2
> Rounding order: 2 dec
> Rounding invoice: 2 dec
> Both: ROUND_HALF_UP
> Calculation for order price:
> 8,526 * 2 = 17,052 --> Rouning = 17,05 (rounding takes place after multipying with the order quantity )
> Calculation for invoice price:
> 8,53 * 2 = 17,06 (rounding takes place before multipying with the order  quantity)
> Rounding takes place on different places and leads to (from my understanding) misscalculation.
> I create a patch that applies rounding on PriceCalculation level. Therefore:
> 1) get singe unit price and do all calculations on it (Price rules ...)
> 2) before forwarding the price, apply rounding (ORDER SETTINGS) on single unit price
> As the invoice calculation uses the unit price (if invoice is associate with order) from ORDER_ITEM it will calculate with the already rounded value.
> Result: Order Price = Invoice Price
> I would appreciate any thought on it.



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