Difference Between Basic Date Scheduling and Lead Time Scheduling.

[Former Member]

Dear FRndz,

Kindly help me out the difference between the Basic Date Scheduling and Lead Time Scheduling.

Regards,

SRini

[former_member184655 · Accepted solution]

Dear Srinivasan Muthu,

Check this link,

Regards

Mangalraj.S

[Former Member]

Hi,

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

[former_member785367]

tejas great explanation.

I have 1 doubt though.

can you explain difference between Production Start Date And Order Start Date ?

[Former Member]

Dear Muthu,

1. Basic date scheduling means it takes the in house prodution time(in days) u maintained in material master MRP view for the article without considering the ur qty to be manufactured

2. Lead time scheduling means it takes the time from the routing of the material. and alos calculates basis on the qty to be manufactured. in routing we maintain time individualy for all activities for the base qty. suppose ur base qty is 10, time is 5hrs and u want to produce 50qty and will be calculateed as 25hrs again it depends on fromula we amintained in work ceenter

sree

[rupesh_brahmankar3]

Dear,

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.

Same thread.

https://forums.sdn.sap.com/click.jspa?searchID=19281092&messageID=3548465

Please refer this link,

[Difference|]

Hope clear to you.

Regards,

R.Brahmankar