A confirmation form is a form you can create to help you with verification and checking that the Complaint has been fully & adequately completed. It is a list of questions you might ask yourself to check before confirmation. You can choose to use this or not. 

Step 1: Select dropdown beside the Complaint & select Edit Confirmation Template

Step 2: From here you follow the same steps 5 to 7 in Creating a customer complaints template to create your confirmation template. 

Step 3: It might end up looking like this