Invalid String. The String may contain unsupported or illegal chars
I can't export Flex elements to QuickBooks. I get this error:
ERROR CODE:2040, ERROR MESSAGE:Invalid String. The String may contain unsupported or illegal chars, ERROR DETAIL:Element contains invalid characters. <the data that contains invalid characters>, MORE ERROR DETAIL:<the field where the invalid characters are found>
Solution
A field contains characters QuickBooks won't allow. The offending field is often noted as the "Error Element" or in "More Error Detail." Remove special characters from the field and re-export.