SAP PP Interview Questions and Answers

What is the difference between By-product and Co-product and how do you differentiate them in a BOM? 

1. Co-product costs are settled with a apportionment structure (shared with all products). In By-product the price is credited to the order or the material stock account of the lead material being manufactured. 
2. Co-Product as well as by-product are defined as BOM Components/Items. Both of them have negative quantities. ( Not all negative quantity items fall under these categories!).When BOM is created for FERT , you can see one indicator in COMPONENT DETAILS screen for co-product.You need to define the co-products with this special indicator .
3. Co-product must have costing value. Must have a settlement rule and mandatory with main product. By-product has no costing and settlement rule.bulk product MRP run can not consider the bulk product.

SAP Factory Calendar ?

1. Factory calendar contain company specific dates such as alternate working Saturdays, Plant shutdown etc. 
2. You can create your company factory calendar via transaction code 'SCAL'. 
3. Assignment of the factory calendar by plant is done in transaction code 'SM30 - V_T001W'. 
4. An example of a SAP application that uses the factory calendar is the SAP MRP modules. 
5. Assuming that you have a specified an alternate working Saturday, MRP will postponed the planned orders to the next working day if it happened to falls on a non-working Saturday.