Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi @rachelnelson,
Welcome to Microsoft Q&A, and thank you very much for reaching out.
Based on your description, from my research, error 9hehw is commonly related to an authentication issue in Outlook for Mac. Since you mentioned that you have cleared Outlook cache, may I know if you have cleared the Outlook and Office credentials stored in Keychain Access?
Also, to ensure that I understand correctly, may I verify that you have run Office license removal tool when upgrade to Office business 2024?
If you haven't clear Office credentials stored in Keychain Access, you can do this by opening Keychain Access, searching for entries related to Outlook, Office, and Microsoft. Then right click and remove only the items that are clearly associated with Office or Outlook sign‑in.
After that, restart your Mac and try signing in to Outlook again.
For reference: Delete a keychain in Keychain Access on Mac - Apple Support
Regarding a refund for Office Home 2024, please note that this forum provides peer‑to‑peer support only from community member and forum moderator and not a replacement for Microsoft Support. I and other member do not have access to your Microsoft account and unable to process refunds on your behalf. I can only share information based on publicly available documentation and resources.
That said, I found an external article that provides guidance on how to request a refund for Office Home 2024. You may review it to see if it helps you further.
Note: This information is provided as a convenience to you. These sites are not controlled by Microsoft, and Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please ensure that you fully understand the risks before using any suggestions from the above links.
I hope this helps.
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