For a customer I have the following situation.
[list]
[]They sell fresh produce based on weight.
[]The customer orders (and pays) x grams of a product.
[*]The customer actually receives y grams of this product (even 0.1 gr counts).
[/list]
What is the easiest way to recalculate the difference to the customer? All ideas are welcome.
Hello ehenderichs!
The easiest way is to recalculate the difference manually and send an email to the customer explaining the difference in weight. If you would like to automate all the process, I'm afraid it's not a trivial task and requires a custom modification.
Best regards, Alt-team
[quote name=‘ehenderichs’ timestamp=‘1371113119’ post=‘163520’]
For a customer I have the following situation.[list]
[]They sell fresh produce based on weight.
[]The customer orders (and pays) x grams of a product.
[*]The customer actually receives y grams of this product (even 0.1 gr counts).
[/list]
What is the easiest way to recalculate the difference to the customer? All ideas are welcome.
[/quote]
First & foremost you really need to choose a credit card processor which allows you to “Authorize” and “Capture” as separate steps, this way your orders are authorized for the amount of your customers original order yet allows you to do the final capture including the additional amount of product you actually shipped. There are limits to the additional amount which you can add to the original authorized amount in the 10-15% range, so you need to make sure the original authorization amount is within these limits which it appears should not be an issue from your explanation. I know you can do this using Authorize.net as your payment card processor through CS-Cart and perhaps Paypal Pro as well, you will need to verify.
Other than that, you just need to clearly make it known on your site that the final order totals can change dependent upon the exact amount of product actually shipped to your customers, then you should be good to go. 
Thx for the replies. The main methode for payments is iDEAL and Paypal. So the credit card solution is not always applicable.
Already had a suspicion this would require some custom modifications.