The "Routing Date Calculation" field on a production order determines the scheduling method for all associated route stages. The user selects either "Start Date Forwards" or "End Date Backwards".

Start Date Forwards: The system uses the production order's overall start date to calculate the start and end dates for each sequential stage.

End Date Backwards: The system uses the production order's overall due date to work backward, calculating the required start and end dates for each stage.

In both cases, the primary output of this setting is the calculated schedule, which directly sets the Start Date for each individual stage.

B. Waiting days: This is a predefined duration within the Route Stage master data that serves as an input to the date calculation, not an element affected by it.

C. Status: A stage's status (e.g., Planned, In Progress, Complete) is determined by transactional events like reporting completion, not by the initial scheduling logic.

D. Run time: This is a fixed time component defined in the Route Stage master data. It is used by the calculation to determine the schedule, but its value is not changed by the calculation method.

1. SAP Business One 10.0 Help Portal: In the documentation for the Production Order: General Tab

the field "Routing Date Calculation" is described. It explicitly states

"Specify how the application calculates the start and end dates of the route stages

" confirming its direct impact on stage dates. The two options

"Start Date Forwards" and "End Date Backwards

" directly determine the scheduling of stage start times.

2. SAP Business One TB120010 Course Book (Logistics): Unit 7: Production

in the section covering Production Orders with Routing

explains the scheduling process. The material details that the system calculates the start and end dates for each route stage based on the chosen calculation method

using the defined run times and other lead time components as inputs. This process directly results in the determination of each stage's start date.