> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blnkfinance.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Instant Reconciliation
> Learn how to run reconciliation instantly.
export const CtaCallout = props => {
const {title, buttonLabel, href, trackingEvent, buttonTarget, rel = "noopener noreferrer", children} = props;
const handleCtaClick = () => {
if (typeof window === "undefined" || !trackingEvent) {
return;
}
try {
window.dispatchEvent(new CustomEvent("blnk:docs-cta", {
detail: {
name: trackingEvent,
href
}
}));
} catch {}
try {
window.posthog?.capture?.(trackingEvent, {
href
});
} catch {}
const gaPayload = {
cta_href: href
};
try {
window.gtag?.("event", trackingEvent, gaPayload);
} catch {}
try {
window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
event: trackingEvent,
...gaPayload
});
} catch {}
};
const isExternal = typeof href === "string" && (/^https?:\/\//i).test(href);
const target = buttonTarget ?? (isExternal ? "_blank" : undefined);
const linkRel = isExternal ? rel : undefined;
return ;
};
If you're using the auto-provisioned `Enterprise Core` instance included with your Production License deployment, set the base URL to: `https://ENTERPRISE_PUBLIC_URL/core`.
If you're connecting to a different Core instance, use the publicly accessible base URL for that instance instead.
### Authorization
If set, the API uses an API key for authentication. Include the following header in your requests: `X-blnk-key: `.
Replace `` with your secret API key. Ensure the key is kept secure and not exposed in public repositories or client-side code.
See also: [Scoped API keys](/api-keys/overview) and [Secure your Blnk server](/advanced/secure-blnk).
### Body
Array of external transactions to be reconciled. Max number of external transactions allowed is 10,000.
Unique external transaction id.
The transaction amount.
Unique transaction reference.
ISO 4217 currency code.
Description/narration of the transaction.
Transaction date and time.
Origin of the transaction data.
Specifies the reconciliation strategy to be applied. Learn more: [Reconciliation strategy](/reconciliations/strategies). Supported values are:
* `one_to_one`: Used for a direct match between an internal transaction record in your Blnk Ledger and an external transaction record.
* `one_to_many`: Used when one external transaction represents multiple internal transactions (e.g., batch or split payments).
* `many_to_one`: Used when multiple external transaction records make up one internal transaction record (e.g., installment payments, ACH transfers, etc.).
Indicates whether the reconciliation process should be executed as a test or not.
* `true`: Results are not stored in the ledger, treating it as a test.
* `false`: Results are stored in the ledger.
Specifies the field used to group records during reconciliation.
Specifies the IDs of the matching rules to apply during the reconciliation process.
```json theme={"system"}
{
"external_transactions": [
{
"id": "txn1a2b3c4d5e6f7g8h9i0",
"amount": 549,
"reference": "INV-2023-002",
"currency": "GBP",
"description": "Card payment",
"date": "2024-11-15T14:25:30Z",
"source": "bank-api"
}
],
"strategy": "one_to_one",
"dry_run": false,
"matching_rule_ids": [
"rule_890bdbc4-467f-4670-8424-5667e41daf29"
]
}
```
```json 400 theme={"system"}
{
"error": "external_transactions is required",
"error_detail": {
"code": "RECON_EXTERNAL_TXNS_REQUIRED",
"message": "external_transactions is required"
}
}
```
```json 400 theme={"system"}
{
"error": "too many external_transactions; max is 10000",
"error_detail": {
"code": "GEN_VALIDATION_ERROR",
"message": "too many external_transactions; max is 10000"
}
}
```
## Need help?
We are very happy to help you make the most of Blnk, regardless of whether it is your first time or you are switching from another tool.
To ask questions or discuss issues, please [contact us](mailto:support@blnkfinance.com) or [join our Discord community](https://discord.gg/7WNv94zPpx).
Sign up and manage your ledger with our back-office dashboard. You can invite teammates to collaborate and manage your ledger operations directly from the dashboard.