To create a SAP test-case, you can pass input DATA (correct and Incorrect and see the outcome):

Correct Input Data

Order Date 01/01/2016, Order Type Sales Order
Expiry Date 15/01/2016, Shipping Date 10/01/2016,
Select Payment Due Date 10/01/2015, Item QTY 10, etc.

Incorrect Input Data

Order Date 01/01/2017, Order Type Sales Order
Expiry Date 15/01/2017, Shipping Date 10/01/2017,
Select Payment Due Date 10/01/2017, Item Qty 0, etc.

Output Data - With Correct Data

Order is successfully saved in SAP module and invoiced.
Next is Packing slip number.
Next is Shipping Order number, etc.

Output Data - With incorrect Data

Error message for incorrect data input. TEXT message for incorrect input data should be defined in the system.

Expected Output

Sales Order#
Sales INVOICE#
Packing List#, etc.

To create a SAP test-case, you can pass input data (correct and Incorrect and see the outcome):

Correct Input Data

Order Date 01/01/2016, Order Type Sales Order
Expiry Date 15/01/2016, Shipping Date 10/01/2016,
Select Payment Due Date 10/01/2015, Item Qty 10, etc.

Incorrect Input Data

Order Date 01/01/2017, Order Type Sales Order
Expiry Date 15/01/2017, Shipping Date 10/01/2017,
Select Payment Due Date 10/01/2017, Item Qty 0, etc.

Output Data - With Correct Data

Order is successfully saved in SAP module and invoiced.
Next is Packing slip number.
Next is Shipping Order number, etc.

Output Data - With incorrect Data

Error message for incorrect data input. Text message for incorrect input data should be defined in the system.

Expected Output

Sales Order#
Sales Invoice#
Packing List#, etc.