Office Microsoft 365 Business Standard

2026-07-09T06:31:25.02+00:00

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I have a Microsoft 365 Business Standard Retail ESD software product key (KLQ-00209). I entered it on the signup.microsoft.com/get-started/setupkey page, but it shows an error like the image. What is wrong with this key?

Microsoft 365 and Office | Install, redeem, activate | For business | Other
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Answer accepted by question author
Jayden-P 26,280 Reputation points Microsoft External Staff Moderator
2026-07-09T07:26:49.82+00:00

Please note that we're not Microsoft support, this is a user-to-user support forum. Moderators have no backend access and cannot directly intervene in Microsoft products. We provide only technical guidance and best-practice recommendations based on reported issues.

Hi @Nguyễn Đức Hoàng Phương

To help me know more about your situation, could you please provide the following information?

If the issue persists, we recommend contacting the seller or source from which you obtained the product key to verify its activation and redemption status.


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