Derivation Logic for Funds Management (PSM-FM)

Use

If you are using Contract Accounts Receivable and Payable with Funds Management , you can only make document postings with complete Funds Management account assignments (FM account assignment). You have to specify at least the account assignment elements, Commitment Item and Funds Center in the business partner and general ledger items. The system derives the assigned FM area from the company code.

When you enter a document, you can the FM account assignments as follows:

  • You enter the FM account assignment directly into the line items when you create a document manually.

  • If you have not made any manual FM account assignment entries, the FM account assignments are assigned from the derivation rules you defined in Customizing. This applies in particular to documents created automatically.

  • You enter a document that references to an item to be cleared, for example, if you enter a clearing document for a payment, a reversal, or a transfer posting. In this case, the FM account assignments are entered through the document to be cleared and are then passed on to the clearing document.

    Note Note

    Note that when you activate Funds Management in Contract Accounts Receivable and Payable , with document postings, the balance of each FM account assignment is checked. Therefore, you can only post a reeivable if the balance of all line items is zero and the balance of each FM account assignment in the document is also zero. These criteria do not have to be met for clearing postings as the FM account assignments of documents to be cleared are passed on to the clearing document.

    End of the note.

Prerequisites

SAP does not deliver a derivation strategy for the integration of Contract Accounts Receivable and Payable with Funds Management . You define the account assignment derivations in the Implementation Guide for Contract Accounts Receivable and Payable under Start of the navigation path Integration Next navigation step Funds Management (PSM-FM) Next navigation step Define FM AccountAssignment Derivation End of the navigation path .

For more information on defining derivation rules, see the IMG activity Define FM Account Assignment Derivation in the Implementation Guide .

Features

Manual account assignment entries

With the standard SAP system, you can enter FM account assignments on the screen Post Document : Create Item or Create Offsetting Item in the Funds Management screen area. The system automatically enters the Original FM Area and FM Type from the specifications you made for the company code and underlying account assignments . If you do not make any entries in the FM account assignment fields, the derivation rules you defined in Customizing are used for postings.

If you select the button G/L Item when you enter the business partner item, the system enters the default values for the FM account assignments of the offsetting item based on the derivation rules defined. Default values for FM account assignments for the business partner item are determined in event 1102. SAP delivers the standard function module FKK_EVENT_FM_1102.

FM Derivation Strategy

If you do not make any specifications for FM account assignments when you enter a document, the system uses the derivation steps you defined in Customizing to determine the account assignment. You define the relationship between source field entry values and automatic assignments to target fields for each derivation step. Target fields are the FM account assignment elements commitment item, funds center, fund and functional area. As well as the FM account assignment elements, the following source fields can also be used: C ompany Code, Main Transaction, Subtransaction, Division, Account Assignment Determination Characteristic and Period Key .

The derivation tool has various derivation step types ( derivation rules, table access, assignment , initialization, enhancement, function module ) that you can use to define a derivation strategy.

Special Features for Statistical Postings

When a statistical document is posted in FI-CA, this document is not relevant for the general ledger or FM. The FM category is not filled in the business partner item. However, the FM account assignments are filled according to the derivation rules and inherited to the debit entry on clearing.

Example

The following example shows how you can outsort the update for revenues from income tax and vehicle tax to different FM account assignments in the IMG activity, Define FM Account Assignment Derivation with the derivation step type Derivation Rule .

  1. You create the derivation rule Income Tax and choose the source fields Main Transaction and Subtransaction , as well as the target fields Funds Center and Commitment Item .

  2. Using the button Maintain Rule Entries , create a table in which you define the values for the source and target fields . Define the following IF THEN link:

    Income tax derivation rule

    Main Transaction

    Subtransaction

    Funds Center

    Commitment Item

    Invoice

    Income tax

    Revenue 1

    Income tax

    Invoice

    Vehicle tax

    Revenue 2

    Vehicle tax