Backward scheduling

[Former Member]

Dear all,

1. What is backward scheduling and what is Forward scheduling?

2. What is the difference betwwen BADIS and ENHANCEMENTS?

Regards,

Kedar. s

[Former Member · Accepted solution]

Hi,

1. When a sales order is entered and when u enter a plant, system immediately conducts backward scheduling.. This will keep the Requiured del date in mind and check whether stock is available on this date, if the stock is available then it confims this date.

If the stock is not available on this date then it conducts forward scheduling and determines a new date.

<b>Reward if it helped!</b>

Chandru

[Former Member]

Hi,

when a customer places order for a material, from the date on which the material is available,system adds loading time, picking,packing time if u specified in ur shipping poing and gives the goods issue date, if ur maintaining routes then the system adds transportation lead time, transit time to the goods issue date and confirms the date on which customer receives goods exactly.For this to happen u have u assign delivery and transportation scheduling to sales document type.However if in some cases materials ordered by customer u r able to deliver to meet his requested delivery date irrespective of all the above said functions, then u assign backward scheduling to sales document type, generally backward scheduling is used in scenarios where large quantities of materials r maintained, normally they dont run out of stocks. then the system carries out all the above said activities backwards from the customer requested delivery date but after adding all the material should be available on or before the date on which ur raising sales order, if the material is not available by the time ur raising the sales order then system carries out forward scheduling automaticaly.

[Former Member]

Hi,

http://help.sap.com/saphelp_nw2004s/helpdata/en/94/9cdc40132a8531e10000000a1550b0/content.htm

chekc this link it helps u for badis and enhancements

with regards

Rajesh

[Former Member]

Hi,

Backward scheduling is the calculation of deadline dates: the arrival time at the customer site is calculated as the earliest possible goods receipt time at the customers unloading point on the requested delivery date. All four of the delivery and transportation scheduling lead times are subtracted from the customer’s requested delivery date to determine if this date can be met.

The transit time, loading time, and pick/pack time are subtracted from the customer’s requested delivery date to calculate the required material availability date.

The system calculates backward scheduling as follows:

Requested delivery date minus transit time = Goods issue date

Goods issue date minus loading time = Loading date

Loading date minus transportation lead time = Transportation scheduling date

Loading date minus pick/pack time = Material availability date

By default, the system will calculate delivery dates the closest day, taking into consideration the working days of the shipping point and a rounding profile. In this case the system assumes a 24 hour work day and lead times can be entered in days up to 2 decimal points. This is referred to as daily scheduling.

Precise scheduling calculated down to the day, hour and minute is supported. This allows the scheduling of a delivery within a single day. It is activated by maintaining the working hours for a particular shipping point.

Backward scheduling is always carried out first. If the material availability date or transportation scheduling date is calculated to be in the past, the system must then use forward scheduling.

Forward scheduling is also done if no product is available on the material availability date calculated by backward scheduling. The system does an availability check to determine the first possible date when product will be available. This new material availability date forms the starting point for scheduling the remaining activities. The loading time, pick/pack time, transit time, and transportation lead time are added to the new material availability date to calculate the confirmed delivery date.

With regards

Rajesh