Production orders are not correctly planned, because Non-working day is set to end date for planned order if delivery date is Monday. The schedule can be corrected by rescheduling after firming, but it is time consuming for users. Steps to reproduce the issue. 1.Use entity USMF. 2.Create 2 new released product. Navigate to Production information management > Common > Released products Click Product button in New group and enter followings in New released product form: Product number: 00010 Product name: Purchased item Item model group: FIFO Item group: Audio Storage dimension group: SiteWH Tracking dimension group: None Inventory unit: ea Purchase unit: ea Sales unit: ea BOM unit: ea Click OK. Click Product button in New group and enter followings in New released product form: Product number: 00011 Product name: Production item Item model group: FIFO Item group: Audio Storage dimension group: SiteWH Tracking dimension group: None Inventory unit: ea Purchase unit: ea Sales unit: ea BOM unit: ea Click OK. Select item 00011 created above and move to Engineer tab. Click Lines button in BOM group. Click Create BOM button and enter followings: Deacription: Test Site: 1 Select item 00010 for item number and select 11 for Warehouse. Click Approve button. Tick Approve bill of material and click OK. Click Activation button and check BOM is activated. Close the form. Move to Plan tab and click Default order settings button in Order settings group. Move to Inventory tab. Enter 5 for Inventory lead time and select tick Working days. Close form. 3. Check calendar setting. Navigate to Organization administration > Common > Calendars > Calendars a. Select Production. b. Check if Saturday and Sunday are closed. 4. Check Master plan setting. Navigate to Master planning > Setup > Plans > Master plans Select DynPlan and check Scheduling method is Operations scheduling. 5. Create a new planned order. Navigate to Master planning > Common > Planned orders Select DynPlan for Plan. Click Planned order button in New group. Enter followings: Item number: 00011 Site: 1 Warehouse: 11 Req. quantity: 1 Delivery date: 8/27/2018 Click Create. 6. Check the created planned order for item 00011. Actual result: Different date is set to Requirement date and Delivery date. Requirement date: 8/27/2018 Delivery date: 8/24/2018 Also, non-working day 8/25/2018 (Saturday) is set to End date. Expected result: Date calculation behavior should be the same as the orders that entered delivery date is Tuesday to Friday.