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The partner initiates a credit limit increase on an existing card engagement with a single request. As the application moves through document collection, review, signing and the final decision, Nordiska emits webhook events that mirror those state changes. The partner collects supporting documents from the customer and uploads them via the API. Signing is hosted by Nordiska; the partner only needs to forward the customer to the signingUrl that arrives on the webhook.
Recommended reapplication cooldown: 90 days. Nordiska does not enforce this in code, but we recommend the partner prevents a customer from submitting a new credit limit increase application within 90 days of a previous decision, regardless of whether the previous application was approved or rejected.

Initiate Credit Limit Increase

POST /api/engagements/card/{engagement-id}/credit-limit-increase

Request body

{
  "appliedAmount": {
    "amount": 1500000,
    "currency": "EUR",
    "unit": "MINOR"
  },
  "reason": {
    "reasonType": "LARGER_PLANNED_PURCHASES"
  },
  "monthlyIncome": {
    "amount": 450000,
    "currency": "EUR",
    "unit": "MINOR"
  },
  "employmentType": "PERMANENT",
  "redirectUrls": {
    "successUrl": "https://partner.example.com/credit-limit-increase/success",
    "failUrl": "https://partner.example.com/credit-limit-increase/fail"
  }
}
FieldRequiredDescription
appliedAmountYesThe new requested credit limit.
reasonYesCustomer-selected reason for requesting the increase. See Reason.
monthlyIncomeYesThe customer’s claimed net monthly income.
employmentTypeYesCustomer’s current employment situation. See EmploymentType.
redirectUrlsYesURLs the customer is sent back to after the hosted signing flow finishes or is aborted.

Reason

reason is a tagged object discriminated by reasonType. Exactly one value must be provided.
reasonTypeExtra fieldsMeaning
CURRENT_LIMIT_DOES_NOT_COVER_EVERYDAY_NEEDSExisting limit is insufficient for the customer’s everyday spending.
LARGER_PLANNED_PURCHASESCustomer plans specific larger purchases.
INCREASED_NEED_FOR_FINANCIAL_FLEXIBILITYCustomer wants more general headroom.
TEMPORARILY_HIGHER_OR_CHANGED_EXPENSESCustomer is going through a period of higher or changed expenses.
OTHERdescription (string)Free-text reason supplied by the customer.
Example with OTHER:
{
  "reason": {
    "reasonType": "OTHER",
    "description": "Moving abroad and need higher monthly headroom"
  }
}

EmploymentType

ValueMeaning
PERMANENTPermanent employment.
SOLE_PROPRIETORSelf-employed sole proprietor.
RETIREDRetired.
STUDENTStudent.
HOMEMAKERHomemaker.
OTHERAnything that does not fit.

Response 200 OK

{
  "id": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11",
  "status": "PROCESSING",
  "createdAt": "2026-05-12T08:13:21.482Z"
}
The application always starts in PROCESSING. Subsequent status changes are pushed via webhooks.

Upload Supporting Documents

When the CREDIT_LIMIT_INCREASE_DOCUMENTS_REQUIRED webhook fires, the customer must supply supporting documents (e.g. payslips or bank statements). The partner uploads them as multipart/form-data. Up to 5 files can be sent in a single request, and the endpoint can be called multiple times until all required documents have been provided.
POST /api/engagements/card/credit-limit-increase/{credit-limit-increase-id}/documents
Content-Type: multipart/form-data
PartRequiredDescription
documentsYesOne or more files (repeat the part per file). Up to 5 files per request, each ≤10 MB, ≤50 MB combined. Content type must be application/pdf or image/*.
Returns 200 OK on success.

Get Credit Limit Increase

Fetch the current state of a credit limit increase application.
GET /api/engagements/card/credit-limit-increase/{credit-limit-increase-id}

Response 200 OK

{
  "id": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11",
  "engagementId": "8e3a2c1d-7b9f-4a52-9c01-2e8f6a91bd33",
  "appliedAmount": {
    "amount": 1500000,
    "currency": "EUR",
    "unit": "MINOR"
  },
  "status": "AWAITING_SIGNING",
  "additionalInformation": {
    "signingUrl": "https://sign.nordiska.com/?sessionId=1fa6ef79-16e7-4665-ae78-c885e65e372b"
  },
  "createdAt": "2026-05-12T08:13:21.482Z",
  "updatedAt": "2026-05-12T09:02:55.117Z"
}
additionalInformation is present only in terminal or actionable states and carries the same payload as the corresponding webhook:
StatusadditionalInformation shape
AWAITING_SIGNING{ "signingUrl": "..." }
REJECTED{ "rejectReason": "..." }
FAILED{ "failureCode": "..." }
otheromitted

Credit Limit Increase Status

The application moves through the following statuses:
StatusFinalDescription
PROCESSINGApplication created and submitted for evaluation. Initial state of every application.
AWAITING_DOCUMENTSSupporting documents are required from the customer (e.g. payslips or bank statements).
AWAITING_DOCUMENT_REVIEWDocuments have been received and are being reviewed manually by Nordiska.
AWAITING_SIGNINGA new credit agreement has been generated and the customer needs to sign it via a hosted URL.
COMPLETEDThe new credit limit has been activated.
REJECTEDThe application was rejected.
FAILEDThe application could not be processed due to an error. See failureCode.

State diagram

Credit limit increase state diagram The grey boxes show the webhook emitted on each transition.

Webhook Events

One webhook is emitted per status change. Every payload carries creditLimitIncreaseId.

CREDIT_LIMIT_INCREASE_DOCUMENTS_REQUIRED

The customer needs to upload supporting documents (payslips for employed customers, bank statements supporting the claimed income).
{
  "eventType": "CREDIT_LIMIT_INCREASE_DOCUMENTS_REQUIRED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11"
}

CREDIT_LIMIT_INCREASE_DOCUMENT_REVIEW_STARTED

Documents have been received and are under review. No customer action required.
{
  "eventType": "CREDIT_LIMIT_INCREASE_DOCUMENT_REVIEW_STARTED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11"
}

CREDIT_LIMIT_INCREASE_SIGNING_SESSION_CREATED

The customer must be redirected to signingUrl to sign the new credit agreement.
{
  "eventType": "CREDIT_LIMIT_INCREASE_SIGNING_SESSION_CREATED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11",
  "signingUrl": "https://sign.nordiska.com/?sessionId=1fa6ef79-16e7-4665-ae78-c885e65e372b"
}

CREDIT_LIMIT_INCREASE_COMPLETED

The new credit limit is active on the engagement.
{
  "eventType": "CREDIT_LIMIT_INCREASE_COMPLETED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11"
}

CREDIT_LIMIT_INCREASE_REJECTED

The application was rejected.
{
  "eventType": "CREDIT_LIMIT_INCREASE_REJECTED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11",
  "rejectReason": "CREDIT_LIMIT_INCREASE_REJECTED"
}
rejectReason is always CREDIT_LIMIT_INCREASE_REJECTED. The field is kept as an enum for forward compatibility.

CREDIT_LIMIT_INCREASE_FAILED

The application could not be processed due to an error rather than a credit decision.
{
  "eventType": "CREDIT_LIMIT_INCREASE_FAILED",
  "creditLimitIncreaseId": "f4b5d83f-2eaa-4db3-9a1d-0a9f8a55cd11",
  "failureCode": "INTERNAL_ERROR"
}
failureCode is one of:
ValueMeaning
INTERNAL_ERRORAn unexpected internal error occurred.
TIMEOUTThe customer did not complete a required step within the allowed window.

End-to-end sequence