Hi @Vitalikssssss, Is this feature no longer supported? I added these exact fields to my database and built a Submission Form with these fields and copied the code above into the footer but when I type values in the three fields: lab_fee, c_discount, and credit_charge the TotalFee field doesn't get updated in the form or in the database.
I tried doing it both as a Submission Form and as a Single Record Update but it doesn't work on either.