[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2023-03-06 (世界標準時間)。"],[[["This guide explains how to prevent duplicate counts of conversions and reports, a common issue that can arise due to browser retries or unexpected user behavior."],["To avoid processing the same report multiple times, check the `report_id` of incoming reports and ignore any that match previously received reports."],["For event-level reports, you can use the `deduplication_key` in the `Attribution-Reporting-Register-Trigger` header to deduplicate conversions."],["Aggregatable reports can be deduplicated by setting `aggregatable_deduplication_keys` in the header, using either a static key or varying keys based on filter configurations."],["The use of filters in conjunction with `aggregatable_deduplication_keys` allows for more granular deduplication based on conversion types or other relevant information."]]],["To prevent duplicate reports, check the `report_id` upon receipt and ignore reports with already-received IDs. To avoid duplicate conversions, use `deduplication_key` in the `Attribution-Reporting-Register-Trigger` header for event-level reports. For aggregatable reports, employ `aggregatable_deduplication_keys`, setting keys within the header. You can also utilize filters alongside deduplication keys to vary the key based on conversion type or other criteria. The first matching filter's key will be used.\n"]]