Dear @DarrenLee JingHern
Thank you so much for contacting Microsoft Q&A Forum.
Based on your descriptions, I can see that date format inconsistencies between Microsoft Forms (which uses M/D/Y) and SharePoint Lists (which you're using in D/M/Y) can cause confusion, incorrect data entries, or even automation failures in Power Automate. Since you're using Power Automate to populate the List, I have an idea that you can check if it can help your preferred D/M/Y format:
Format the date in Power Automate before writing to the List: you can use the formatDateTime() function in Power Automate to convert the date from Forms into your preferred format. Example expression:
formatDateTime(triggerOutputs()?['body/DateField'], 'dd/MM/yyyy')
This ensures that the date is stored in the List in D/M/Y format regardless of how it was entered in Forms.
References:
- Customize or format date and time values in a flow - Power Automate | Microsoft Learn
- Use format data by examples to change the format of data with Power Automate - Power Automate | Microsoft Learn
Besides that, I found this case that may have additional information if you're getting errors like "provided text can't be converted into a valid datetime", you can consult for more information: How to fix Date Conversion Power Automate Flow - Microsoft Q&A
Also, as a forum moderator, I have limitations in my testing environments and cannot access the internal databases to help you with this Power Automate feature. Therefore, I highly recommend you to reach out Find Answers | Microsoft Power Platform Community for getting more professional help, there will be very professional people to tell you about the steps on how to realize this function.
I hope this information can help you and please kindly correct me if I misunderstand your concern.
Wish you a pleasant day!
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