Hi Folks,
I am building one flow using power automate to import excel template into the Sharepoint list. My current Flow structure for your reference.

once the flow runs complete, I am receiving the below error with flow failed status as shown below:

I have one date field in the excel template where the column value will be in this format: "Jan-21". I have passed the column value via variables. I have Assigned the date field in the variable and used that variable into the flow to pass it.
Within create Item action, I have used this formula as an expression for the date field -> "Period End Field":
formatDateTime(variables('Periodend','mm-yyy'))

Kindly suggest your comments, whether this formula, causing the first screenshot error and flow fails?.
If yes, please share your comments for the date filed format - > Jan-21.
Thanks for your help in Advance!