To set the parent and child relationship for your variation listings in ecomdash:
1. Navigate to Inventory -> Inventory Management
2. Click into a product SKU number using the binoculars icon
3. Check the checkbox for 'Variation'
4. This will show the attributes of Parent and Child SKU number for you to enter the information based on your variation listing.
Usually the child SKU number is going to be the same as your SKU number and you will enter the Parent SKU number to keep track of the parent and child relationship.