I’m trying to create a new XLSX document from Template in Microsoft Flow, passing in data entered in Microsoft Forms. However, everytime I run the flow, I get the following error:
“message”: "The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. ",
My input fields in the excel template are as follows:
and this is what is being inputted (pulled from other data):
“date”: “Wednesday, June 12, 2019”,
When I run this, the output is a status code (400), and the error message.
I’m not sure what I’m doing wrong, and what the base-64 error is referring to. I tried removing all non base-64 characters from my inputs and that didn’t fix the problem either.
Any help would be appreciated!