> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-sync-code-change-04d645a.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IB20Asset.updateMultiplier

> Generated B20 reference for updateMultiplier(uint256).

## Signature

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

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

## Description

<Warning>
  `updateMultiplier` is deprecated. Prefer the scheduled `updateUIMultiplier` for routine corporate actions. This function is retained in `IB20Asset` (still dialable) for backward compatibility only.
</Warning>

Instant failsafe / emergency override — sets the current multiplier immediately and cancels any live pending update without a scheduling window. Emits the deprecated `MultiplierUpdated(newMultiplier)` event alongside the ERC-8056 `UIMultiplierUpdated(oldMultiplier, newMultiplier, effectiveAtTimestamp)` so indexers watching the legacy topic continue to work through the transition. When it clears a live pending update, it also emits `UIMultiplierUpdateCancelled(cancelledMultiplier, cancelledEffectiveAt)` before the multiplier-change events.

Reverts with `AccessControlUnauthorizedAccount` when the caller does not hold `OPERATOR_ROLE`.
Reverts with `InvalidMultiplier` when `newMultiplier` is zero or above `type(uint128).max` (see `MAX_UI_MULTIPLIER()`).

## Parameters

| Parameter       | Type      | Description                                                                    |
| --------------- | --------- | ------------------------------------------------------------------------------ |
| `newMultiplier` | `uint256` | 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);
```