An indirect credit rule is the appropriate choice for this scenario. This rule type is specifically designed to handle hierarchical credit assignments, often referred to as "roll-ups." It allows credit from a transaction, initially assigned to a primary participant (the sales representative), to be passed up the organizational hierarchy to other participants, such as direct and regional managers, based on predefined relationships. This directly addresses the requirement of distributing percentages of a transaction to multiple levels of management.

A. Direct credit rule: This rule assigns credit only to the participant directly associated with the transaction (the sales representative). It does not handle rolling credit up to managers.

B. Secondary measurement rule: This rule performs additional calculations on a measured value (e.g., applying accelerators or tiers). It does not assign or distribute credit.

D. Primary measurement rule: This rule determines the initial compensable value from a transaction (e.g., revenue, margin). It measures the "what," not the "who," of compensation.

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1. SAP Help Portal, SAP Commissions Administrator Guide: "Rule Types". This guide defines the purpose of each rule. It states, "Indirect Credit Rule: Assigns credit to participants who are indirectly associated with the transaction, for example, through a hierarchy. This rule type is used for manager overrides and roll-ups." This directly supports the use of an indirect credit rule for the described rolling relationship. (Accessed via SAP Help Portal for SAP Commissions, latest version).

2. SAP Help Portal, SAP Commissions Administrator Guide: "Credit Rules". This section further elaborates, "A direct credit rule assigns credit to the participant who is directly associated with the transaction... An indirect credit rule assigns credit to participants who are indirectly associated with the transaction, for example, through a hierarchy." This distinction confirms that direct credit is for the primary earner and indirect credit is for the hierarchy. (Accessed via SAP Help Portal for SAP Commissions, latest version).