Payment Transactions

A Payment Transaction is the operational record of a financial movement on a Merchant Payment Account. It is the working object for payment reporting: status lifecycle, categorization, and assignment to invoices or credit notes.

Payment Transactions sit between collection (Payment Intents) and bank/PSP finality (Settlements):

ObjectRole
Payment IntentCollection attempt toward the PSP
Payment TransactionOperational money movement on the merchant account
Settlement ItemSettled line from a PSP/bank statement
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Accounting typically books only when money is settled. A transaction can exist before settlement — or never settle (refused, cancelled, fraud).

How Payment Transactions are created

  1. From settlement intake (most common for reporting)
    Creating a Settlement Item creates (or settles) a Payment Transaction in status SETTLED.

  2. From Payment Management (full-service)
    A successful Payment Intent can lead to a Payment Transaction (often before the corresponding settlement arrives). Later, settlement links or updates the transaction to SETTLED.

  3. Via API
    POST /v2/merchant-payment-accounts/{merchantPaymentAccountIdent}/payments
    Create payment transaction

Transaction vs settlement

SetupWhat you typically see
Reporting only (hybrid)Transaction count and settlement-item count often align — transactions appear when settlements are ingested
Full-service (charging + reporting)Counts can differ — e.g. captured but not yet settled, refused/cancelled charges, refunds in progress

Use the Transactions overview for open / in-progress movements; use Settlement Reports for statement reconciliation.

Status

A Payment Transaction has a status history. Statuses include:

StatusMeaning (high level)
RECEIVEDReceived / registered
AUTHORIZEDAuthorized
CAPTUREDCaptured at the provider (not necessarily settled yet)
SETTLEDSettled — linked to settlement; accounting anchor
REFUSED / ERROR / CAPTURE_FAILEDFailed paths
EXPIRED / CANCELLEDEnded without settlement
REFUNDEDRefunded
CHARGEBACKChargeback

Status can be updated via API (POST /v2/payments/{ident}/actions/update-status). Only “higher” statuses advance the current status; otherwise the value is stored in history.

Update payment transaction status

Categorization and assignment

After a transaction exists:

  1. Payment category — purpose of the payment (e.g. customer payment, bank fee, chargeback). Starts uncategorized unless set by intake/rules. Category controls whether the payment is assignable to documents.
  2. Payment assignment — if assignable and a match is found (or done manually), the transaction is assigned to invoices / credit notes (OPOS).

Assignment status on the transaction:

  • UNASSIGNED
  • PARTIALLY_ASSIGNED
  • COMPLETELY_ASSIGNED

assignableLeftoverAmount shows how much is still open for assignment.

Typical outcomes:

  • Uncategorized / unassigned
  • Categorized (assignable) / unassigned
  • Categorized (assignable) / assigned
  • Categorized (not assignable) / unassigned (e.g. fees that must not clear invoices)

Work in the webportal

Go to: Payment > Transactions

Use the overview to:

  • Find open and settled transactions per merchant payment account
  • Inspect status history, category, and assignment status
  • Open linked settlement data where available
  • Support manual categorization / assignment workflows where configured

Key fields

FieldPurpose
identinstellix transaction ID
externalIdentUnique reference from PSP/bank (within the MPA)
baseAmount / originalAmountAmount in MPA currency / original currency
creditDebitIndicatorCREDIT or DEBIT
textDescription / remittance — often used for matching
paymentCategoryClassification for further processing
paymentIntentIdentSet if the transaction originated from a Payment Intent
settlementIdentLinked settlement item when settled

Credit and debit

creditDebitIndicator describes the direction of the money on the Merchant Payment Account:

ValueMeaningTypical examples
CREDITMoney is added to the merchant accountCustomer payment (settled), chargeback reversed, merchant pay-in
DEBITMoney is removed from the merchant accountRefund, chargeback, merchant payout, fee

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