Output only. The email address of the service account identity that will be used for a build by default.
This is returned in the format projects/{project}/serviceAccounts/{serviceAccount} where {serviceAccount} could be the legacy Cloud Build SA, in the format [PROJECT_NUMBER]@cloudbuild.gserviceaccount.com or the Compute SA, in the format [PROJECT_NUMBER]-compute@developer.gserviceaccount.com.
If no service account will be used by default, this will be empty.
[[["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 2026-06-09 UTC."],[],[]]