> ## Documentation Index
> Fetch the complete documentation index at: https://autoloans.liquidity.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Payment Reminder

This endpoint sends a payment reminder associated with a specific loan. It is typically used to notify the borrower or related parties about important loan events, such as upcoming due dates, payment reminders, default warnings, or other critical updates.

**What it does:**

* Triggers a payment reminder related to the loan lifecycle
* Communicates borrower obligations or system-triggered events
* Records a reference to the payment reminder on-chain for audit purposes

**When to use it:**

* Before an installment due date to remind the borrower
* In the event of missed payments, triggering a default warning
* To log any significant loan-related notification or update

## Request Body

The request body must include the loan identifier for which the payment reminder is being issued:

```json theme={null}
{
  "loanId": "0x5a0c0663a48e3abf16c7f0ee632b57da833e44e02a290fc0920ea2858da31f73"
}
```

## Response

* Returns a success confirmation with the blockchain transaction hash:

```json theme={null}
{
  "transactionHash": "0x5a0c0663a48e3abf16c7f0ee632b57da833e44e02a290fc0920ea2858da31f73"
}
```