You can track production orders related to a sales order or track sales orders related to a production order.
To track production orders from a sales order:
1) Open a sales order with order planning.
2) Click on Function --> Order Tracking.
3) Click Show to see the Sales Order card.
To track sales order from production order:
1) Open a production order.
2) Click on the Function --> Order Tracking.
3) Click Show to see the Production Order.