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A bank opening voucher records the opening balance of one or more bank accounts. Unlike a bank transfer voucher, it produces no customer movement; only bank movement lines are written.

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Required fields

  • VoucherNumber: unique in the company across all bank voucher types (not only openings), at most 20 characters. Send "Next" to generate it from the same "BANKAFİŞNO" series used by bank transfers. Cannot be "Next" on update.
  • Date: voucher date. If a time is sent it is stored as the voucher time, otherwise the current time is used.
  • Lines: at least one line.
Description and SharingCode are optional; an empty SharingCode makes the voucher visible to everyone, otherwise it must be one of the user’s sharing codes.

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Lines

Unlike a bank transfer, each line picks its own bank account (the lines of a voucher are not all recorded against the same account):
  • BankAccountCode: required, one of the company’s bank accounts. The line’s currency is that account’s own currency.
  • Debit/Credit: exactly one must be greater than 0, the other must be 0 (send Debit to debit the account, for example).
  • ExchangeRate: required (and must be greater than 0) when the bank account’s currency differs from the company’s default currency; otherwise treated as 1 even if not sent.
  • Description: optional, per-line description.
The voucher’s ExchangeRate (in the response) is the amount-weighted average of the lines — the same formula as bank transfers, where a line’s amount is Debit + Credit.
Unlike a bank internal transfer, a bank opening voucher’s lines do not need their total Debit to equal their total Credit.

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Update

Since it produces no customer movement (there is no closed-record/payment-plan lock to worry about), lines are fully replaced on update: existing lines are removed and the lines in the request are saved.

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Posted voucher

When IsPosted is true (the voucher has been linked to an accounting entry) it cannot be updated or deleted (8306).