sap pp-scheduling

[Former Member]

When u2018Basic date Schedulingu2019 is used & when u2018Lead time schedulingu2019 is used in PP-Scheduling process?

[Former Member · Accepted solution]

Hi,

Basic date scheduling will consider Inhouse production time from material master.

But lead time scheduling will consider operation time from routing. It is very accurate scheduling. With lead time scheduling only system will create capacity requirements.

Regards,

Dharma

[Former Member]

Hi,

Pls find the difference between Basic Scheduling & Lead Time Scheduling as below :

Basic scheduling :

1.Basic dates are calculated.

2.Exact to day.

3.No cap reqmts are generated.

4.uses the inhouse production time from material master.

5.carried out automatically during planning run.

In basic date calculation ( order start date/ order finish date ) the system always

calculates backward scheduling.

1. From the reqmts date the system subtracts the GR processing time to

calculate the order fininsh date.

2. From the order finish date the system subtracts the inhouse production time to calculate the order start date.

3. From the order start date the system subtracts the opening period given in scheduling margin key to calculate the order opening date.

Lead time scheduling :

1.Exact to second

2.ie production start date /time and finish date and time are calculated.

3. cap reqmts are generated.

4. uses times from routing.

5. carried out only if the scheduling mode in MD02 screen is kept with indicator 2.

From the order finish date the system subtracts the float after production to calculate the production finish date.

From the production finish date the individual operations in the routing are scheduled backwards to calculate production start date.

From the production start date the system subtracts the float before production

to calculate order start date.

HOpe this helps.

Regards,

Tejas