Chart of Accounts

The Chart of Accounts (COA) is the tenant's mapping from Omnium accounting events to general-ledger account numbers. Every ledger line carries an account category; the chart turns that category — together with a VAT rate, tax group, or payment method — into the concrete account number your accounting system expects.

The chart is edited under Configuration → Settings → Advanced → Accounting settings, in the Chart of accounts card. A store can also carry its own entries that replace individual tenant entries for that store only — see Store Accounts.

Chart entry fields

Each entry maps one slice of activity to one account number.

The Accounts view shows account number, name, category, discriminator, VAT rate, VAT code, and active. Currency code, Tax group code, and Description are set in the JSON view; the country presets fill in the tax group code for you.

The discriminator

The discriminator is what distinguishes two entries that share the same category:

• For Sales, OutputVat, Shipping, and RentalSales, the discriminator is the VAT rate as a fraction, with a dot as decimal separator and without trailing zeros — 0.25 for 25 %, 0.15 for 15 %, 0.1 for 10 %, 0.11 for 11.11 %, 0 for 0 %. This is how a 25 % sale and a 15 % sale book to different revenue and VAT accounts.
• For PaymentMethod and RefundPaymentMethod, the discriminator is the payment method name — the name configured on the payment method for web orders (for example klarna_kco), or the payment method recorded by the register for POS. Matching is case-sensitive.
• For GiftCardLiability, the discriminator is GiftCard.
• For DepositLiability, use Deposit, or leave it blank.

Discriminators are compared as exact text, so 25, 0,25, and 0.10 never match a rate. An entry with no discriminator acts as the catch-all for its category.

Categories and when they are used

How an account is resolved

When Omnium needs an account for a line, it filters the chart to active entries of the matching category, then picks the first entry that matches in this order:

1. Tax-group match — an entry whose tax group code matches the line's tax group, preferring one that also matches the posting currency. This wins over rate-based matching. Only applies when the line has a tax group.
2. Exact discriminator + currency — entry matching both the discriminator and the posting currency.
3. Discriminator only — entry matching the discriminator with no currency restriction.
4. Category catch-all — the first entry for that category with no discriminator and no currency.

Within each step, the entry higher in the list wins. Receivable and OverShort are looked up separately: the first active entry of that category with no discriminator and either no currency or the posting currency.

If none of these match, the line is still written to the posting, with an empty account number and no warning. The exceptions:

• Auto-balancing — when a posting needs a Receivable or OverShort account and none exists, the posting is not created.
• Cost transfers — when an InternalTransferIn or InternalTransferOut account is missing, the transfer lines are left out and the posting gets a warning.
• Deposits — a DepositLiability line without an account adds a warning to the posting.

The Over/short account number set in posting settings overrides any OverShort entry in the chart.

Building the chart

The Chart of accounts card offers these actions:

The presets follow common national charts (NS 4102, BAS, Standardkontoplan). Verify every account number against your own accounting system before going live.

Norwegian preset

The Swedish (BAS) and Danish presets follow the same structure with their national account numbers and tax-group codes (HIGH, MID, LOW, ZERO, EXPORT for Sweden; HIGH, ZERO, EU_B2B, EXPORT for Denmark).

Editing the chart as JSON

The JSON view shows the whole chart as a JSON array, one object per entry with accountNumber, name, description, category, discriminator, vatCode, vatRate, currencyCode, isActive, taxGroupCode, and properties. Use it to set the currency or tax group of an entry, to copy a chart between tenants (Copy to clipboard), or to paste a chart prepared elsewhere.

• Compare shows the differences between the text and the current chart.
• Apply accounts replaces the chart with the text. Nothing is applied if the text is not valid JSON or an entry has a missing or unknown category; unknown fields are ignored with a warning. Save the card afterwards.
• Reset discards your text edits.

The text may be a bare array or an object with a chartOfAccounts array.

[
  {
    "accountNumber": "3050",
    "name": "Salg, næringsmidler (15%)",
    "category": "Sales",
    "discriminator": "",
    "taxGroupCode": "FOOD",
    "isActive": true
  },
  {
    "accountNumber": "3051",
    "name": "Salg, næringsmidler (15%) POS",
    "category": "Sales",
    "discriminator": "0.15",
    "isActive": true
  },
  {
    "accountNumber": "1920",
    "name": "Klarna (payment)",
    "category": "PaymentMethod",
    "discriminator": "klarna_kco",
    "isActive": true
  }
]

Worked example

A tenant selling at 25 % and 15 % VAT, taking card and cash, and shipping to customers might configure:

A 25 % sale paid by card then books revenue to 3000, output VAT to 2700, and the tender to 1920.

Related pages

• Postings & Ledger Lines — the categories and debit/credit conventions the chart serves.
• Tax Groups — VAT codes and the tax-group keys used in resolution.
• Store Accounts — replace individual tenant entries for one store.
• Configuration — the Over/Short override and the Validation tab.