Dear @Pina Singh,
Welcome to Microsoft Q&A.
Thank you very much for your question. From what you described, I understand you would like to use an Excel file stored on OneDrive or SharePoint to trigger an automatic vacation‑notification flow sending a reminder in Teams or Outlook one week before someone’s holiday begins.
At the moment, Excel itself doesn’t provide a built‑in way to automatically send notifications from a column stored in OneDrive or SharePoint. That means the reminder you want (one week before a vacation) can’t run directly from Excel alone.
However, there is another practical approach you can consider: using Power Automate to read your Excel table and send the notification by Teams or Outlook email at the right time. This method is commonly used in Microsoft 365 because it does not require coding and works reliably with files stored in OneDrive or SharePoint.
I’m currently testing this scenario myself to confirm the most stable setup (especially with date formats and Excel serial numbers), so I may need a little more time to fully validate the workflow. While waiting, you can already explore a few useful references that explain the techniques involved:
- Use lists of rows in flows
- Send a message in Teams using Power Automate
- Customize or format date and time values in a flow
- How to Send Automated Reminders in Power Automate
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link
I hope this gives you a helpful direction while I continue checking the full end‑to‑end scenario.
If you want, you can also share a small example of your Excel structure, and I’ll be happy to guide you through the exact steps.
Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.
Looking forward to hearing back from you with any updates or additional details.
Warm regards,
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.