> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-add-b20-spec.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IB20Asset.updateMultiplier

> Generated B20 reference for updateMultiplier(uint256).

[Related concept](/base-chain/specs/upgrades/beryl/b20/specification/concepts/variants-asset-vs-stablecoin)

## Signature

```solidity theme={null}
function updateMultiplier(uint256 newMultiplier) external;
```

| Field               | Value                       |
| ------------------- | --------------------------- |
| Selector            | `0x5ffe6146`                |
| Canonical signature | `updateMultiplier(uint256)` |

## Description

Instant failsafe / emergency override — sets the current multiplier immediately and
cancels any live pending update without a scheduling window.
Prefer `setUIMultiplier` for routine corporate actions.
Dev: Reverts with `AccessControlUnauthorizedAccount` when the caller does not hold `OPERATOR_ROLE`.
Dev: Reverts with `InvalidMultiplier` when `newMultiplier` is zero or above `type(uint128).max`.
Param: newMultiplier New multiplier scaled to `WAD_PRECISION`; must be in `(0, type(uint128).max]`.

## Access control

`OPERATOR_ROLE` gates this Asset call.

## Policy interaction

No direct policy interaction.

## Example

```solidity theme={null}
IB20Asset(target).updateMultiplier(arg0);
```

## Related

* [IB20Asset reference](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IB20Asset)
* [Constants & addresses](/base-chain/specs/upgrades/beryl/b20/specification/reference/constants-and-addresses)