Can't add custom disc. percentage to ticket

V5 Question
1

Hello,

I have a calculation type “Disc %” that uses “Discount % Transaction” and calculation method of “Rate from ticket amount”.

The problem is when using POS, I can only enter specific numbers for discount percentage: 10, 15, 20, 25, 50. I can’t enter custom percentages.

My settings for the calculation type are as following:
Rate or Amount: 0.000
Max Amount: 0.000 (I also tried 100.00)
Rounding: 0.000
Checked boxes: Decrease Amount, Toggle Calculation

I couldn’t find anywhere specifying fixed percentages. Would appreciate your assistance.

2

On Settlement screen you should be able to type in any number? Is this a custom prompt input?

3

Yes I can type any number in the screen.
This is a button at the end of the screen

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image867×979 49.9 KB

% Discount has the following prompt, in which I can only specify certain numbers

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This is my setting for the discount calc. button

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Note that the other button “Discount Amount” allows me to type any number without issues. The problem is only in the Discount %

4

Go to Automation > Rules and find this discount button rule, can you send photos of all the actions laid out?

You have a regular expression there thats stopping you from entering whatever you want

5

Thank you!
This seems what is constricting it.

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How do I fix it? just replace it with [?Discount Rate] without any options?

6

Change Discount Rate
From
[?Discount Rate;[0-0]|5|10|15|20|25|50]
To
[?Discount Rate;;;;]

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7

If you use this: [?Discount Rate;;;OCN;] this will give you a numeric keyboard instead of the alapha/numeric keyboard.

If you want to get really fancy you could use [?Discount Rate;\d{1,2};;OCN;] This will restrict the input to numbers only (prevents accidental physical keyboard inputs) and a maximum of 2 digits.

2 Likes
8

Thank you so much!
Would you mind explaining the Syntax for me or guide me through a tutorial for regex used by samba as I couldn’t find one? more specifically on the meaning of the many ;

9

He has a Discount Reason in there thats why I didnt force numeric keyboard, + SambaPOS will do internal check whether Discount is int or string.

You can find many tutorials online, Id recommend to look for JavaScript tutorials

Character classes
.	any character except newline
\w\d\s	word, digit, whitespace
\W\D\S	not word, digit, whitespace
[abc]	any of a, b, or c
[^abc]	not a, b, or c
[a-g]	character between a & g

Anchors
^abc$	start / end of the string
\b\B	word, not-word boundary

Escaped characters
\.\*\\	escaped special characters
\t\n\r	tab, linefeed, carriage return


Groups & Lookaround
(abc)	capture group
\1	backreference to group #1
(?:abc)	non-capturing group
(?=abc)	positive lookahead
(?!abc)	negative lookahead

Quantifiers & Alternation
a*a+a?	0 or more, 1 or more, 0 or 1
a{5}a{2,}	exactly five, two or more
a{1,3}	between one & three
a+?a{2,}?	match as few as possible
ab|cd	match ab or cd
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