`client_id` (counterparty link)

client_id (counterparty link)

client_id links a sales invoice to the party it was issued to. Bookkeeping uses the counterparty link for receivables reporting, matching payments, and proving who the sale was to when reviewing postings and VAT treatments.

Example values: client-001, client-042.

← invoice_id Sales invoices date →

Sources

• Finnish bookkeeping and tax-audit compliance
• Accounting workflow overview
• Create sales invoice
• Invoice ledger impact
• Generate invoice PDF and register attachment