without at least a url/link , I cannot really do/say much….

If you need more granular control of discounts, there’s this one here
https://support.wp-pizza.com/downloads/wppizza-coupons-and-discounts/

However, if you simply want to have lower prices for your products if the customer chooses pickup, then I think this is what you might be looking for
https://support.wp-pizza.com/downloads/wppizza-pickup-prices/

hope that helps

>I will be happy even if computer/device has to be on, if that will print automaticky

yes, i understand that, but if you are happy with a computer being running , then various solutions (if you want to call it that) already exist from what i can see i.e https://appuals.com/how-to-prints-emails-and-attachments-automatically/
no need to re-invent the wheel I would think

alternatively, as far as i know, there are also already plenty of printers that can poll an email address and print out what’s in the email queue.

Essentially, I/We are looking for something that can print directly from the site when an order is received without any computer being in between. Furthermore, I will only spend time developing such a thing if it is somewhat universally usable, i.e something that works for more or less all or at least a majority of printers, not something that needs a different plugin for each different printer or some such

Hi
i can see why you might want to do that.
However, I do not think it will be that easy to implement unfortunately.
I’ll see what I can do, but cannot make any promises at the moment I’m afraid

ok, then something in the theme is outputting content when it should not.
in 99.9 % of the cases this is because some file starts with [something here]<?php instead of just <?php
(i.e an additional space or linebreak, or any other character before the <?....
– there should never be anything before the opening php )

i would suggest you check your functions.php (theme and/or child theme) first of all and in particular any modifications you have made yourself to any (child)theme files

and your issue is probably here

[05-Feb-2020 15:14:17 UTC] PHP Warning: session_start(): Cannot start session when headers already sent in ……./wp-content/plugins/wppizza-delivery-by-postcode/v3x.php on line 1603

i.e. you are outputting stuff in ajax requests (by another plugin) which will make sessions not work
such as
…The each() function is deprecated. …
etc etc

the plugin authors should of course fix this, but – as stated – simply do not output but log error messages to bypass these kind of problems

back to the issue at hand

a) please update your plugins (especially the main wppizza plugin – what you are using is almost a year old, even though i do not think this is the problem)
b)please enable debug like so : https://docs.wp-pizza.com/troubleshooting/

ok
(you should definitely check your browser console and make sure that your php sessions are working)

without – at least – a link to the site (and better still, screenshots of your plugin settings too) i cannot really say anything

>Or is there simply no other possibility because the confirmation will “take 2 business days but can take up to 14 days (to confirm the success or failure of a payment)”?

that is exactly it. unless the payment is confirmed by the bank, it will not show up as paid.
there’s nothing the plugin can do. this is the bank(s) taking up to 14 days to confirm.
personally – for precisely that reason – i would never use sofort (unless your business is something where it does not matter too much if it takes 14 days for payments to be received.. but only you can decide that )

one thing though : if it does NEVER complete in the system , then that’s usually because the required webhook is not set-up in the live account (this does not seem to be the case from what you are saying, so am only mentioning it here for completeness sake)