Field help (MFGITMREF1) 

Type in or select the code of the product to be released. The product code must be valid for the defined production site.

Certain criteria apply to the selected product before it can be processed. It must be a manufactured product (product category), held in stock (stock management mode) and be active (product status). The bill of material (BOM) will define the materials (components, ingredients) required to manufacture this product, and whether it is printed on Pick lists.

To add an unplanned by-product or secondary product to this work order, select the next line in the table then click Addition of a by-product from the Actions icon. A by-product is a product that will be produced as a secondary result whilst making the main product. For example, if a component is cut from sheet metal the offcuts can be returned to stock to be used for smaller components.