Hi harsha,
Thank you for posting back and shared the information and cause with us.
We have read your description carefully. And it seems that you want to delete the old records in SharePoint list everyday and new data from Excel file. And you assume that the problem is related to network fluctuations, and it occurs randomly.
If my understanding is right, this issue may be related to that you inserted bulk data and you used Access to delete old records and update new records, due to the number of data is too large, during this period, the server may be overloaded and unresponsive, so multiple connections are required to succeed.
For the three questions you provided below, we want to provide some workarounds here to get rid of this behavior and make it easier:
- Since you mentioned that you want to delete old records and deploy new records, if so, you can refer to this article: Create a list based on a spreadsheet to create a SharePoint list by importing an existing spreadsheet file. And in this way, you can delete the list with old records or save it, then you can create a new list with new records every day.
- And according to our search, and we found your requirement may be achieved by Microsoft Flow. If you want to use Microsoft Flow to deploy it,
to make sure you get professional help, we’d suggest you post a new thread in Power Automate Community, that’s a specific channel to handle related questions. And we also searched a lot and we found the related thread, for your reference: Update SharePoint List from Excel file. 3. For the third workaround, and you can also use PNP code to delete all records in SharePoint list, and we have tested it on our side and it works fine, you may need to wait some time, and we will send the detailed steps in private message, you can see the detailed steps I provided in private message.
Hope the workarounds above can help you.
Best Regards,
Sukie