[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-06-27 UTC."],[[["\u003cp\u003eThis document outlines how to update \u003ccode\u003eCompletionConfig\u003c/code\u003e settings via a \u003ccode\u003ePATCH\u003c/code\u003e request to the specified URL endpoint.\u003c/p\u003e\n"],["\u003cp\u003eThe request requires a \u003ccode\u003ecompletionConfig.name\u003c/code\u003e path parameter, which is a fully qualified name string, and it is immutable.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eupdateMask\u003c/code\u003e query parameter determines which \u003ccode\u003eCompletionConfig\u003c/code\u003e fields are updated, with options including \u003ccode\u003ematching_order\u003c/code\u003e, \u003ccode\u003emax_suggestions\u003c/code\u003e, \u003ccode\u003emin_prefix_length\u003c/code\u003e, \u003ccode\u003equery_model\u003c/code\u003e, and \u003ccode\u003eenable_mode\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe request body and successful response both contain an instance of \u003ccode\u003eCompletionConfig\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eTo perform this update, the user must have the \u003ccode\u003ediscoveryengine.completionConfigs.update\u003c/code\u003e IAM permission and the \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e OAuth scope.\u003c/p\u003e\n"]]],[],null,["# Method: projects.locations.collections.dataStores.updateCompletionConfig\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Query parameters](#body.QUERY_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [IAM Permissions](#body.aspect_1)\n\nUpdates the [CompletionConfig](/generative-ai-app-builder/docs/reference/rest/v1alpha/CompletionConfig)s.\n\n### HTTP request\n\n`PATCH https://discoveryengine.googleapis.com/v1alpha/{completionConfig.name=projects/*/locations/*/collections/*/dataStores/*/completionConfig}`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n### Query parameters\n\n### Request body\n\nThe request body contains an instance of [CompletionConfig](/generative-ai-app-builder/docs/reference/rest/v1alpha/CompletionConfig).\n\n### Response body\n\nIf successful, the response body contains an instance of [CompletionConfig](/generative-ai-app-builder/docs/reference/rest/v1alpha/CompletionConfig).\n\n### Authorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/cloud-platform`\n\nFor more information, see the [Authentication Overview](/docs/authentication#authorization-gcp).\n\n### IAM Permissions\n\nRequires the following [IAM](https://cloud.google.com/iam/docs) permission on the `name` resource:\n\n- `discoveryengine.completionConfigs.update`\n\nFor more information, see the [IAM documentation](https://cloud.google.com/iam/docs)."]]
