Currencies, VAT and units

Three code lists used by the e-shop, the warehouse and invoicing alike.

Currencies

Find them under Systém → Měny.

Field	Note
Name and code	koruna, Kč
Exchange rate	against the main currency
Separators and decimal places	how amounts are written — and how many places the amount due on a payment is rounded to
Symbol position	before or after the amount
Show suffix and suffix	text after the amount, e.g. "excl. VAT"
Credit price	for internal credit
Do not invoice	no documents are issued from this currency
Interní měna (internal currency)	amounts are printed as a pluralized unit count, not as money
Popisek za částkou (label after the amount)	the pluralized unit form per language; empty = the code is used
Active

The exchange rate does NOT convert product prices

This is the most common misunderstanding about currencies. Prices are entered separately in each currency in the price lists — the rate has no effect on them. Set a rate expecting the shop to start selling in euros and it will not: goods without a price in that currency cannot be bought.

What the rate is actually for

It is used by the payment gateway that can accept a payment in a currency other than the order's — it converts the amount by this rate. Outside that case it is not used in the system.

The rate does not update itself

It is a value you enter by hand. Nothing fetches it from a central bank.

The do-not-invoice flag is for credit

An internal currency in which a customer keeps a balance. The document was issued when the credit was bought, not when it is spent.

The 'Interní měna' switch is for credit too

Turned on, it means this currency is not money. The amount is then printed as a pluralized unit count ("1 credit", "200 credits") instead of a money format, and VAT is never mentioned for it. The plural form is entered in the currency translation's Popisek za částkou field, for example {0}credits|[1,4]credits|[5,Inf]credits; an empty field means "use the code".

Step by step: creating your own internal currency (points, tokens)

1. Systém → Měny → Přidat, fill in the name and the code.
2. Set the number of decimal places to 0 — points are usually not divisible.
3. Tick Interní měna and Nefakturovat.
4. Fill in Popisek za částkou with a pluralized form for every language.
5. On the gateway that charges in this currency, tick Konečné ceny — VAT does not apply to an internal currency.
6. Fill in the tariff prices for the combination of region + this gateway + this currency; without them nobody can buy the tariff.

The number of decimal places also drives payment rounding

It is not merely display formatting. The amount due on a tariff payment is rounded to this number of places — once, from the whole unrounded sum — so that the gateway can charge it with nothing left over; see Rounding of the amount due. Change it and further payments in this currency will come out at different amounts than before; payments already created are not recalculated. Gateways with final prices are the exception — nothing is rounded there.

VAT

Find it under Systém → DPH.

A rate is a percentage with a multiplier used to calculate it.

Do not edit a rate; add a new one

Changing the percentage on an existing rate recalculates all new documents and prices, but not old ones. When a rate changes by law, create a new one and switch the goods over — the history then stays legible.

Create a zero rate even if you do not use it yet

It is needed for exempt goods and for exports.

Units

Find them under Systém → Jednotky.

Field	Note
Code	pcs, kg, m, hr
Order	in which they are offered
Active

The unit on a document is an imprint

Invoices and stock documents copy the unit code into themselves. Renaming a unit does not change old documents — deliberately.

Put the most-used unit first

The order decides what is offered first. In a shop full of goods that saves hundreds of clicks.

Where they are used

Code list	Who reads it
Currencies	e-shop price lists, tariffs, invoices
VAT	price lists, invoices
Units	products, stock items, invoices

Do not delete an entry something already uses

Documents and products refer to it. Disable an unused entry with the Aktivní toggle.