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POST
/
v1
/
transactions
/
signatures
Sign multiple transactions
curl --request POST \
  --url https://api.pgw-sandbox.finventi.com/v1/transactions/signatures \
  --header 'Content-Type: application/json' \
  --data '
{
  "transactionIds": [
    123
  ]
}
'
{
  "count": 123,
  "failedToSignTransactionIds": [
    123
  ]
}

​
Overview

This endpoint signs multiple transactions at once. Use it to approve several payments waiting for signatures.

​
Prerequisites

Transaction signing must be enabled for your account. Contact Inventi team if you want to enable this

​
How It Works

  1. Submit all IDs that need signature in a single request
  2. The system signs each transaction
  3. Response shows successful signatures and any failures
  4. Payments processing resume automatically after signing

​
Important Notes

​
Supported Transaction Types

Only these transaction types support signing:
  • SEPA Credit Transfers (SCT)
  • SEPA Instant Payments (INST)
  • SWIFT Payments
SEPA Direct Debit (SDD) transactions do not support signing and will never have TO_SIGN status.

​
Bulk Signing Behavior

When using this bulk signing endpoint:
  • Successfully signed transactions appear in the response
  • Failed transactions are included in failedToSignTransactionIds
  • Transactions fail silently without stopping the entire batch
Common reasons for signing failures:
  • Transaction not in TO_SIGN status
  • User has already signed this transaction
  • Transaction type doesn’t support signing
  • Insufficient permissions for the user

​
API vs UI Signing

When your tenant has API signing enabled:
  • API-created transactions must be signed through the API by a different API client than the one that created them
  • UI-created transactions must be signed through the UI interface

​
Requirements

  • Transactions must have TO_SIGN status
  • Must use a different API client from the one that created the transactions
  • User must have signing permissions configured at the tenant level

Body

application/json
​
transactionIds
integer<int64>[]
required

Response

Bulk signing completed - check response for individual results

​
count
integer<int32>
required
​
failedToSignTransactionIds
integer<int64>[]
required