[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06 UTC."],[],["The core content outlines various services within an ad management system, including Adjustment, Company, Creative, and others like Forecast and Inventory. Each service has potential validation errors, specified under `NullError.Reason`. The `NullError.Reason` namespace is identified as `https://www.google.com/apis/ads/publisher/v202502`, and it defines `NULL_CONTENT`, which specifies that lists or containers cannot have null elements. This establishes constraints on the data handled by these services.\n"]]