Recover custom field

Hi,

You can create the custom field with another column name. Then, in the database, you can edit the entry of the custom field in the hikashop_field table and change the column name to the one you had before.
That way, you'll get back the data that was stored before for each element using that custom field previously.
So if you had for example a product custom field and had entered a value for each product in that custom field, doing this procedure will avoid having to edit each product again to reenter the value in the new custom field.