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TPM37 - Define Account Assignment Reference Determination (Exposure Item)

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In this Customizing activity, you can define rules for the automatic determination of account assignment references for parallel valuation areas. You define the rules for each product group. This document deals with the group Exposure Item.

To make postings to a position, you have to assign account assignment references to each subledger position.

The system determines the account assignment references for the subledger positions in the parallel valuation areas when you first post the position using the Execute Classification or the Fix and Post Derived Business Transactions functions (transactions TPM101 and TPM18).

See also: Define Account Assignment References

You have defined account assignment references in the Customizing activity Define Account Assignment References.

The sample Customizing settings contain examples of rules for determining the account assignment reference automatically for each product group.

Note that the valuation area can also be used as an optional parameter to control account determination. As such, it does not necessarily have to be included in the determination of the account assignment reference.

1. Call Up the Customizing Activity. The Determination of Account Assignment Reference: Change Strategy screen appears.

In this screen, you can enter rules for determining the account assignment reference for the respective product group.

The rule can involve various steps. The system processes these steps in ordered sequence until it is able to determine an account assignment reference for the position in question.

A step can consist of a derivation rule or an assignment:

• Step type Derivation Rule

In a derivation rule, you can choose various source fields (such as the currency or product type). The system then uses the values of these fields as the basis for assigning the account assignment reference (target field). You can make the use of a derivation rule dependent on the fulfillment of a condition.

• Step type Assignment

In the case of an assignment, you specify the value to be written to the target field (account assignment reference). You can also make an assignment dependent on the fulfillment of a condition.

SAP recommends that you first define the more specific derivation rules (such as those tied to conditions), and then make the less specific settings. The last entry should be an assignment that takes effect if the system is unable to allocate an account assignment reference on the basis of the preceding rules. This ensures that an account assignment reference is determined each time.

Note:

If no account assignment reference can be determined, the update to Accounting is canceled.

1. Defining a Derivation Rule
1. Choose the Create Step pushbutton. In the dialog box, select Derivation Rule and confirm your entry.
2. Enter a text for the derivation rule.
3. On the Definition tab, enter the fields that you want to use to control the account assignment reference allocation in the Source Fields section. In the Target fields section, choose the AA_REF field for the account assignment reference.

1. You can enter conditions for applying the derivation rule on the Conditions tab.

Example:

If you want this derivation rule to apply to all product categories except for one, select Product Category from input help for the Name field. In the operator field Op., enter the symbol <> for not equal to. In the Value field, you then enter the relevant product category.

1. The settings on the Attributes tab are not supported.
2. You now have to assign the account assignment references to the values of the source fields. To do this, choose the Maintain Rule Values pushbutton.

In the table that follows, you can assign account assignment references to combinations of source field values. The first column contains the first source field that you have selected, the second column the second source field, and so on. The last column contains the target field Account Assignment Reference. You can then select the relevant values from input help.

Example from theExposure Item Area

Source field: Product Type

Target field: Account Assignment Reference

The table then appears as follows:

Source Field	Target Field
Product Type	Acct Assignment Ref.
91A	Exposure Item / Exposure Subitem

1. Define Assignment
1. Choose the Create Step pushbutton. Select Assignment in the dialog box and confirm your entry.
2. Enter a text for the assignment.
3. On the Definition tab, you have two options: You can either choose a source field, the value of which is then written to the target field Account Assignment (in this case, all the values of the source field must correspond to short keys for account assignment references), or enter the short key for the account assignment reference directly in the Constant field.
4. On the Condition tab, you can make the assignment dependent on the fulfillment of a condition.
5. Select AA_REF (Account Assignment Reference) as the target field.
2. Changing the Order of the Steps

You can change the order of the steps after they have been defined. To do this, proceed as follows:

1. Select the step that you want to move.
2. Position the cursor beneath the target position.
3. Choose Move.

91A

The following settings have been defined:

1. Derivation rule 1: Product Type 91A -> Exposure Item / Exposure Subitem

Source Field: Product type = 91A

Target Field: Account assignment reference: Exposure Item / Exposure Subitem

The system first checks whether an account assignment reference can be determined using derivation rule 1. If this is not possible, it checks whether the account assignment reference defined in the assignment step is used. (If you enter an account assignment reference in the Constant field for an assignment without attaching any conditions, this account assignment reference is used for all positions not covered by the preceding derivation rules).

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