Derived Flows 
Dependent on the business partner, you can use the derivation procedure to automatically generate flows when you create a financial transaction. For example, you can make settings to automatically generate tax flows from incoming accrued interest flows when you enter the purchase of a security.
The derivation procedure can be assigned to the business partner at the following hierarchy levels:
Contract type (for example, Money Market, Foreign Exchange)
Product categories for the respective contract type, (for example, fixed-term deposit for Money Market)
Product types for the corresponding contract type/product category (for example, time deposit for the product category fixed-term deposit)
Transaction types for a product type (for example, time deposit investments or borrowings)
The business partner must exist in the system, not be marked for deletion, and released.
You must create the derivation procedure in Customizing for the application areas Money Market, Foreign Exchange, Securities and Derivatives under ‘Define Derivation Procedures and Rules’.
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1. Choose Accounting -> Corporate Finance Management -> Business Partner -> Special Functions -> Standing Instructions -> Derived Flows
2. Enter (the business partner and) the Company code. Choose the ‘Derived Flows’ tab page.
3. You can assign the derived flows at the following levels: Contract type, product category, product type and transaction type.
The following options are available for carrying out the assignment:
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a. Double click at the level you wish to assign a certain procedure. A dialog screen appears, in which you can select the derivation procedure you require. This derivation procedure is then assigned at the level you have chosen, and all the lower levels.
b.
You cannot
deselect a node that has been automatically selected below the level you have
chosen.
c.
Make
selections using the
key, which also provides you with an input
help.
d.
Use the
(Import from other Partner) key to
copy the standing instructions from another business partner.
e.
Use the
(Select All) key to assign a
derivation procedure to all contract types.
f.
Use the
(Deselect All) key to reverse all your
selections.
4. Save your entries.