> 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 ## Resource: Sample Use Cases and Flows ## Article: Sample Use Cases and Flows ## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/restaurants/menus/items/item-modifier-groups/sample-use-cases-and-flows.md ## Article Content: # Item Modifier Groups: Sample Use Cases & Flows This article presents possible use cases and corresponding sample flows that you can support. It provides a useful starting point as you plan your implementation. ## Sync pizza menu across all sites If you have several pizzeria sites, you might need to sync menus across those sites. For example, if there's a new item modifier group called "Extra Toppings", this change also needs to be reflected on other sites. To update the pizza menu across all sites: 1. Call [Get Modifier Group](https://dev.wix.com/docs/api-reference/business-solutions/restaurants/menus/items/item-modifier-groups/get-modifier-group.md) on the site where you updated the menu. 1. Extract the `modifierGroup.name` and `modifierGroup.modifiers` field values. 1. Call [Create Modifier Group](https://dev.wix.com/docs/api-reference/business-solutions/restaurants/menus/items/item-modifier-groups/create-modifier-group.md) for your other sites and pass the new item modifier group to each. 1. Call [Update Item](https://dev.wix.com/docs/api-reference/business-solutions/restaurants/menus/items/items/update-item.md) and add new modifier group ID to the `item.modifierGroups` array.