Certified OmniStudio Consultant

Service agents must verify customer contact details in the first step of a payment OmniScript. Contact information consists of name, telephone number, mobile number, and email. None of the contact information fields on the first step are required.

On the final step, after payment is taken, the agent may email the receipt to the customer. When the customer says yes, the agent selects a checkbox. If the agent selects that box while the email address field is blank, the process must require the user to return to the first step and enter the customer’s email address.

What should the consultant recommend to satisfy this requirement?