NX The specified expression contains a syntax error for part family

While creating new family member parts/updating existing member parts, using a part family template, getting the error "The specified expression contains a syntax error".

One of the column of Part family Template spreadsheet has number type expression and the user kept the value of this expression as blank.

For the number type expressions, entering blank value is not permitted, you can enter "0" as the input value.

So to fix this, in the part family table, blank value should be replaced by "0" value.