Steps to regenerate -
1. Go to "Order" component.
2. Click on [ Order Entry ] menu button.
3. Fill the details in "Purchase Order" section and click on continue.
4. Fill the required order details and click on continue.
5. Open the product lookup table and select a product.
6. Click on [ Atp/Qoh ] button.
The issue generated is -
The productId vanishes from the input field.