[Solved] Why does AWS Cost Explorer sometimes show different cost amounts than your AWS bill? — Ans: Cost Explorer uses estimated costs and may not include all billing adjustments | AWS

AWS - Account and Billing

Why does AWS Cost Explorer sometimes show different cost amounts than your AWS bill?

ACost Explorer uses estimated costs and may not include all billing adjustments

BCost Explorer only shows costs for the current day

CAWS bills are delayed by one month, but Cost Explorer is real-time

DCost Explorer excludes costs from linked accounts

Step-by-Step Solution

Solution:

Step 1: Understand Cost Explorer data timing
Cost Explorer shows estimated costs that update frequently but may not reflect final billing adjustments.
Step 2: Eliminate incorrect reasons
It does not show only current day costs, bills are not delayed by a month relative to Cost Explorer, and linked accounts can be included.
Final Answer:
Cost Explorer uses estimated costs and may not include all billing adjustments -> Option A
Quick Check:
Cost Explorer vs bill differences = estimates vs final charges [OK]

Quick Trick: Cost Explorer shows estimates; final bill may differ [OK]

Common Mistakes:

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Why does AWS Cost Explorer sometimes show different cost amounts than your AWS bill?