> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt # Method name: updateModifierGroup(_id: string, modifierGroup: UpdateModifierGroup, options: UpdateModifierGroupOptions) # Method package: wixRestaurantsV2 # Method menu location: wixRestaurantsV2 --> itemModifierGroups --> updateModifierGroup # Method Link: https://dev.wix.com/docs/velo/apis/wix-restaurants-v2/menus/item-modifier-groups/update-modifier-group.md # Method Description: > **Note:** The Item Modifier Groups API only works with the Wix Restaurants Menus (New) app. Make sure you downloaded this app from [Wix App Market](https://www.wix.com/app-market/wix-restaurants-menus-new). Updates a modifier group. Each time a modifier group is updated, its revision increments by 1. The existing revision must be included when updating the modifier group. This ensures you're working with the latest modifier group information, and it prevents unintended overwrites. # Method Code Examples: *** Note: do not assume any prop names or enum values other than the ones in the example. ## updateModifierGroup example for dashboard page code ```javascript import { itemModifierGroups } from 'wix-restaurants.v2'; async function updateModifierGroup(id, modifierGroup, options) { try { const result = await itemModifierGroups.updateModifierGroup(id, modifierGroup, options); return result; } catch (error) { console.error(error); // Handle the error } } ``` ## updateModifierGroup example for exporting from backend code ```javascript import { itemModifierGroups } from 'wix-restaurants.v2'; import { webMethod, Permissions } from 'wix-web-module'; import { elevate } from 'wix-auth'; const elevatedUpdateModifierGroup = elevate(itemModifierGroups.updateModifierGroup); export const updateModifierGroup = webMethod( Permissions.Anyone, async (id, modifierGroup, options) => { try { const result = await elevatedUpdateModifierGroup(id, modifierGroup, options); return result; } catch (error) { console.error(error); // Handle the error } } ); ``` ---