> ## 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.
# Update balance monitor
> Update the details of a balance monitor.
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).
### Path
The unique id of the balance monitor you want to view. Leave empty to view all balance monitors in your Blnk Ledger.
### Body
Specifies the balance id of the ledger balance to be monitored.
Defines the criteria for monitoring a specific balance type.
Specifies the balance type to be monitored. Every ledger balance has 6 balance types - `balance`, `inflight_balance`, `credit_balance`, `inflight_credit_balance `, `debit_balance`, and `inflight_debit_balance`.
Defines the comparison operator to apply. Accepted values: **>** (greater than), **\<** (less than), or **=** (equal to).
The threshold amount that triggers the balance monitor.
Specifies the URL where notifications will be sent when the balance crosses the defined threshold.
A brief explanation of the purpose of the monitor.
### Response
All parameters from the request body also mean the same in the corresponding response JSON.
The unique id of the balance monitor.
Date and time when the monitor was created.
```json theme={"system"}
curl -X PUT "http://localhost:5001/balance-monitors" \
-H "Content-Type: application/json" \
-d '{
"balance_id": "bln_0be360ca-86fe-457d-be43-daa3f966d8f0",
"condition": {
"field": "debit_balance",
"operator": ">",
"value": 100000
},
"call_back_url": "https://api.myapp.com/balancemonitor"
}'
```
```json 201 theme={"system"}
{
"monitor_id": "mon_e0e77b0c-4985-472a-9bf5-76a48b0259b0",
"balance_id": "bln_0be360ca-86fe-457d-be43-daa3f966d8f0",
"condition": {
"field": "debit_balance",
"operator": ">",
"value": 100000
},
"call_back_url": "https://api.myapp.com/balancemonitor",
"description": "",
"created_at": "2024-02-20T05:56:58.257315054Z"
}
```
```json 404 theme={"system"}
{
"error": "Monitor with ID 'mon_c5d9e2a1-7b4f-4a3c-9e8d-1f6a2b4c8d30' not found",
"error_detail": {
"code": "BAL_MONITOR_NOT_FOUND",
"message": "Monitor with ID 'mon_c5d9e2a1-7b4f-4a3c-9e8d-1f6a2b4c8d30' not found"
}
}
```
## 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.