The database column names correspond to the ‘unique_name’ values in the items table. If you make sure to update the items table, I think you can get away with changing the database column names, but I haven’t tested it.
Can you elaborate on where I can change those values item table?
I should have documented this:
The ‘wp_fm_items’ table stores the specification of each item in every form. The column ‘ID’ corresponds to the *form* ID (Confusing, but that’s how it works right now). The column ‘unique_name’ corresponds to the field name in that form’s data table. The column ‘nickname’ is the nickname you can give the item in ‘Form Extra’ in the form editor. As long as the ‘unique_name’ entry for a form item corresponds to the field name in the form’s data table, everything is kosher.
You can find the form’s data table name under ‘wp_fm_forms’, under the column ‘data_table’.
