I am using SharePoint 2013 on-premise. I have Workflow Manager 1.0 installed. SharePoint 2013 farm is updated to most recent version.
I have 2 list and their respective columns-  Sales - TransactionId (unique), ItemDetails  Details - TransactionId (multiple values), SKU, QTY, Description, UnitPrice.
I would like to have a looping workflow to populate ItemDetails (html) in Sales list with all 4 values such as - Sku, Qty, Description, UnitPrice. The workflow will need to check these values from Details list.
I understand looping is allowed in SharePoint 2013 workflow and this is where I need help with building this logic