Adds, replaces or removes multiple attributes for up to 100 agents. #### Allowed For * Admins * [Agents in custom role with permission to manage skills](https://support.zendesk.com/hc/en-us/articles/4408882153882-Creating-custom-roles-and-assigning-agents) #### Available Parameters The request takes a data object with the following properties: | Name | Type | Required | Description | | ---------- | ------ | -------- | ------------------------------------------------------------------------------------------------- | | action | string | true | The action to perform on the attribute values. One of the following: "upsert", "update", "delete" | | attributes | object | true | The attribute values to update. See [Attribute Values](#attribute-values) | | items | array | true |