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

# getMinimumWithdrawalOrderSize

> Get the minimum withdrawal order size for a vault

Reads the minimum withdrawal order size from the on-chain WithdrawQueue contract. Use this to validate user input before submitting a withdrawal order.

## Import

```ts theme={null}
import { getMinimumWithdrawalOrderSize } from "@paxoslabs/amplify-sdk";
```

## Usage

```ts theme={null}
import { getMinimumWithdrawalOrderSize, YieldType } from "@paxoslabs/amplify-sdk";

const result = await getMinimumWithdrawalOrderSize({
  yieldType: YieldType.CORE,
  chainId: 1,
  assetAddress: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
});

console.log(result.minimumOrderSize); // bigint
console.log(result.shareDecimals);    // number
```

## Parameters

| Parameter      | Type        | Required | Description                    |
| -------------- | ----------- | -------- | ------------------------------ |
| `yieldType`    | `YieldType` | Yes      | Yield strategy type            |
| `chainId`      | `ChainId`   | Yes      | Blockchain network ID          |
| `assetAddress` | `Address`   | Yes      | Asset address for vault lookup |

```ts theme={null}
interface GetMinimumWithdrawalOrderSizeParams {
  yieldType: YieldType;
  chainId: ChainId;
  assetAddress: Address;
}
```

## Return Type

```ts theme={null}
interface MinimumWithdrawalOrderSizeResult {
  /** Minimum order size in vault share units */
  minimumOrderSize: bigint;
  /** Vault share token decimals */
  shareDecimals: number;
}
```

## Example: Input Validation

```ts theme={null}
import { getMinimumWithdrawalOrderSize, YieldType } from "@paxoslabs/amplify-sdk";
import { parseUnits, formatUnits } from "viem";

const result = await getMinimumWithdrawalOrderSize({
  yieldType: YieldType.CORE,
  chainId: 1,
  assetAddress: usdcAddress,
});

const userAmount = parseUnits(userInput, result.shareDecimals);

if (userAmount < result.minimumOrderSize) {
  const min = formatUnits(result.minimumOrderSize, result.shareDecimals);
  console.error(`Minimum withdrawal is ${min} shares`);
}
```

## Error Handling

| Error Message Pattern   | Description                 | Resolution                       |
| ----------------------- | --------------------------- | -------------------------------- |
| `"No vault found"`      | No vault matches parameters | Verify yieldType, asset, chainId |
| `"SDK not initialized"` | SDK not initialized         | Call `initAmplifySDK()` first    |

## Related

* [Withdrawals Guide](/v0.4.2/intro/products/earn/developers/guides/withdrawals) - Complete withdrawal flow
* [getWithdrawalFee](./getWithdrawalFee) - Calculate withdrawal fees