> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.liquifyfin.in/api-reference/liquify-vendor-api/eligibility/start-holding-sync/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.liquifyfin.in/_mcp/server.

# Start a mutual-fund holdings sync

POST https://a7.liquifyfin-uat.in/v1/customers/{customer_id}/holding-syncs
Content-Type: application/json

Asks the customer's registrar for their holdings. `email` and `mobile` are the contact
registered on the customer's folios. For `MFCENTRAL`, send the customer's browser to
`redirect_url`, where they enter MF Central's OTP; for `CAMS` and `KFIN` the registrar sends
an OTP you submit to `…/verify`. Needs the `MF_HOLDINGS` consent.


Reference: https://docs.liquifyfin.in/api-reference/liquify-vendor-api/eligibility/start-holding-sync

## Authentication

- `Authorization` header (bearer token, required) — The token Liquify issued your organisation. Shown once; rotate it from Liquify if it is exposed.

## Request

### Path parameters

- `customer_id` (string, required) — The `customer_id` `POST /v1/customers` returned.

### Body (application/json)

This endpoint expects a HoldingSyncStartRequest.

- `provider` (enum, required)
  - Allowed values: `MFCENTRAL`, `CAMS`, `KFIN`
- `email` (string, required) — The e-mail registered on the customer's folios.
- `mobile` (string, required) — Ten digits, no country code.

## Response

### 202

The sync is started and waits on the customer's OTP.

- `data` (HoldingSyncStart, required)
- `meta` (Meta, required)

## Errors

### 400 Bad Request Error

`VALIDATION_FAILED` — the request breaks a rule in this spec.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 401 Unauthorized Error

`AUTH_INVALID_TOKEN` — no token, an unknown token, or your access is switched off.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 403 Forbidden Error

`ACCESS_DENIED` — this API is not switched on for you; `CONSENT_REQUIRED` — the customer has not granted (or withdrew) a purpose this call needs.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 404 Not Found Error

`NOT_FOUND` — not a customer on your book, or (create) an unknown verification.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 422 Unprocessable Entity Error

`KYC_REQUIRED` — not an individual's PAN, under 18, or the PAN did not verify; `MF_SYNC_CONTACT_NOT_LINKED` — the folios are registered to another e-mail or mobile.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 429 Too Many Requests Error

Rate limited. Liquify's limits answer a problem (`MF_SYNC_RATE_LIMITED` is the customer's sync cooldown); the edge's per-caller limit answers with NO body. Either way, wait `Retry-After` seconds.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

### 503 Service Unavailable Error

`PROVIDER_UNAVAILABLE` / `MF_SYNC_PROVIDER_UNAVAILABLE` — a provider did not answer. Retry after `Retry-After` seconds.

- `type` (string, required) — `about:blank` — `code` carries the meaning.
- `title` (string, required)
- `status` (integer, required)
- `detail` (string, optional)
- `instance` (string, optional)
- `code` (string, optional)
- `errors` (list of string, optional) — One entry per field that failed validation.
- `request_id` (string, optional) — Quote it to Liquify support.
- `trace_id` (string, optional)

## Types

### HoldingSyncStart

- `session_id` (string, required)
- `provider` (enum, required)
  - Allowed values: `MFCENTRAL`, `CAMS`, `KFIN`
- `masked_target` (string, optional, nullable) — Where the registrar sent the OTP
- `redirect_url` (string, optional, nullable) — MF Central only — send the customer's browser here to enter MF Central's OTP.

### Meta

- `request_id` (string, required) — Ties a call to Liquify's records; quote it to support.
- `ts` (datetime, required)

## Examples

**Request**

```json
{
  "provider": "MFCENTRAL",
  "email": "string",
  "mobile": "9876543210"
}
```

**Response**

```json
{
  "data": {
    "session_id": "string",
    "provider": "MFCENTRAL",
    "masked_target": "string",
    "redirect_url": "string"
  },
  "meta": {
    "request_id": "string",
    "ts": "2024-01-15T09:30:00Z"
  }
}
```

**SDK Code**

```python
import requests

url = "https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs"

payload = {
    "provider": "MFCENTRAL",
    "email": "string",
    "mobile": "9876543210"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"provider":"MFCENTRAL","email":"string","mobile":"9876543210"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs"

	payload := strings.NewReader("{\n  \"provider\": \"MFCENTRAL\",\n  \"email\": \"string\",\n  \"mobile\": \"9876543210\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"provider\": \"MFCENTRAL\",\n  \"email\": \"string\",\n  \"mobile\": \"9876543210\"\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"provider\": \"MFCENTRAL\",\n  \"email\": \"string\",\n  \"mobile\": \"9876543210\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs', [
  'body' => '{
  "provider": "MFCENTRAL",
  "email": "string",
  "mobile": "9876543210"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"provider\": \"MFCENTRAL\",\n  \"email\": \"string\",\n  \"mobile\": \"9876543210\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "provider": "MFCENTRAL",
  "email": "string",
  "mobile": "9876543210"
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://a7.liquifyfin-uat.in/v1/customers/customer_id/holding-syncs")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

> High-performance, secure Partner API infrastructure for mutual fund portfolio synchronization and mutual fund & check eligibility.