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Update expense information for a transaction

PATCH 
/api/transactions/:id/expense

This endpoint updates expense information for an existing transaction.

Prerequisites:

To use this endpoint you need to have the ACCOUNTING scope for the API Key. Please contact your relation manager to get this permission.

Eligibility: The transaction type must be enabled in the business partner expense settings targets.

Request Body:

  • category: Expense category ID.
  • costCenter: Expense cost center ID.
  • vats: Array of 1-3 VAT rows containing expenseVat, rate, amount, grossAmount, externalId.
  • vatRate/vatAmount: Deprecated legacy format, still accepted for backward compatibility.
  • note: Optional comment.

Completion update: Expense completion is recalculated during the request, and the response contains the latest expenseCompletedAt value.

Validation Errors: Responses return status 422 with an errors array containing field, code, and message. Possible code values include:

  • transaction.type.not_supported
  • input.category.not_valid
  • input.cost_center.not_valid
  • input.vat_rate.not_valid
  • input.vat_amount.not_valid
  • input.comment.not_valid
  • expense.vat.not_valid
  • expense.category.transaction_type_not_allowed
  • expense.cost_center.transaction_type_not_allowed
  • expense.category.card_group_not_allowed
  • expense.cost_center.card_group_not_allowed
  • invalid

Request​

Responses​

OK - The request was processed successfully.