Schedule Line Categories and Schedule Agreements

What is the meaning of schedule line categories and schedule agreements?

If you take a sales order document, it is divided into three parts:

Header Level information : 
This consist of the overall information of the sales document, for example Net value of the sales order and the like.

Item level information : 
This consist of information at item level, like Item 1 has a material with a net price so and so, item 2 has another material with another net price and so and so.

Schedule line information : 
This gives the information of the time a sales order has to be delivered to the customer, to view this select the item you want to view and to the menu under item >> Schedule line. This date is actually calculated from the delivery date in the Sales document. 
  
Schedule line Agreement : 
Use the T.code VA31 (and choose Scheduleline agreement) : This agreement lets you to predetermine scheduling of different materials with in a given period of time (This is same like the other contracts).

First enter the material with quantity say for example Material 1 Qty: 40, go to Edit from the menu >> Item >> Schedule line

There select within the time period defined two dates, say for example on 12: 01: 2005  20 quantity and on 13: 01: 2005 another 20 (The qty has to be same as the one in the sales order) .

Once this is done you have created a schedule line agreement.

Call this agreement in your sales order (with reference) and use them. 
  
Note: You will be able to deliver only 20 qty on the 12th and 20 qty on the 13th, even though the sales order is for qty 40