Query regarding listing our application in the AWS Marketplace

i have chosen the Single AMI with cloudformation template to list our application in the AWS Marketplace.

1. Do i need to specify the cloudformation template url in the product load foarm? if yes, where should i add and in which column? Also, which and all technical details i have to fill?
2. We have pushed our docker image to ECR repository and deployed it on ECS using Fargate instance.Also, attached load balancer to it. In the product load form, there is one column where we have to give AMI ID. We are not using EC2 instance for deployment. Still do we need to launch an instance and create AMI?