0040245: Missleading message in POS when using a User Defined Amount

Description

There is a missleading message to the user in POS when using an User Defined Amount with no Discounted Amount set in backend.

Message is saying "Some discount information is missing, promotion could not be applied" when the discount type is selected in POS, not even when trying to apply it (here it would make sense): see video attached

Steps To Reproduce

* In backend, go to Discounts and Promotions window, and select record disc_5_var_euro. You will see the Discounted Amount field is 5, but this does not even make sense and is not mandatory since the purpose is the user to later define in POS the amount: remove the 5 of Discounted Amount and Save https://livebuilds.openbravo.com/retail_modules_pgsql_pi/?tabId=800079&recordId=E95B84F4D46E407EBC0C57507DFB8C70 [^]
* Go to POS terminal=VBS-1, create a ticket and add a product https://livebuilds.openbravo.com/retail_modules_pgsql_pi/web/org.openbravo.retail.posterminal/?terminal=VBS-1 [^]
* Select the line of the ticket and click DISCOUNT button
* Search for the disc_5_var_euro discount: as soon as you select it, you will get the "Some discount information is missing, promotion could not be applied" even even trying to apply: this confuses the users
* If you try to apply without setting a discount, you get a popup informing that you have to set an amount: OK
* Then you can add an amount and properly apply the discount

See video attached

Issue History
Date Modified	Username	Field	Change
2019-02-20 15:23	rafaroda	New Issue
2019-02-20 15:23	rafaroda	Assigned To	=> Retail
2019-02-20 15:23	rafaroda	File Added: Missleading message in POS when using a User Defined Amount.webm
2019-02-20 15:23	rafaroda	Triggers an Emergency Pack	=> No

Relationships [ Relation Graph ] [ Dependency Graph ]