How and when to use Base64 expression in Microsoft flow.
I have created a flow that gets trigger on update of an "account" entity record and creates a Note(Annotation) record in Dataverse, This note has a PDF attachment. Flow is like this, in the last step, I am creating a note in Dataverse and attaching a newly created PDF in it: But, I am getting the below error while attaching pdf in a note: Invalid character in field 'documentbody': '', hexadecimal value 0x04, is an invalid character. The reason behind it is the "Document" column, Flow accepts a file content in "Base64", hence I have to change it to base64: Below are steps to convert it in "Base64": Step 1: Click on the Document text box as highlighted below then click on "Expression". Step 2: Search for "Base64" and put bracket(). Step 3: Click on "Dynamic Content", keep the cursor in between the bracket() and click on "File Content" Step 4: Click ok. Now, the Document Text box has the follo...