I'm in France
Well I've spent weeks to have it like I want

I've started with little modifications but i'm ending with a tone of modified lines

(and i'm still modifying things everyday)
I don't need reports but I need an invoice for every transaction (for repairs and sales) with the payment method and the customer ID displayed on it so I had to modify a lot a things (pcrt doesn't link invoice or reports to customers (groups) so I modded files and the sql base).
To complicate even more in france there is a 20% taxe called tva but my company is not subject to it and I had to remove part of the tax system to simplify my use of the program.
Plus the entire traduction to french and modifying every documents that I've to print or send to customers.
I've also modded the dymo label printing process (i can now print it directly from the button on the claim ticket printing page instead of going to another page with the preview/settings, then hit print and then reload the previous page, it was just a big big waste of time in the checkin process) and a lot of things that I don't even remember...
PCRT is great but many things doesn't seems logic to me and/or the way we handle things here.