How can an Admin ensure that rebates are paid only on invoices with a status of "Paid" in Rebate Management?

Creating a custom field in the Transaction Journal for eligibility conditions allows the Admin to specifically define and reinforce the criteria under which rebates can be paid. By setting up a custom field to check for the "Paid" status of invoices, the system can dynamically evaluate each transaction's eligibility based on this criterion.

This approach offers flexibility and can be adapted as business needs change. It can be used to enforce any specific rules or conditions that might evolve over time, ensuring that only those invoices that meet the set criteria contribute to rebate calculations.

Furthermore, having a dedicated field for eligibility conditions can streamline the process of identifying which transactions qualify for rebates. It enhances data integrity and ensures that all transactions are thoroughly vetted according to the predefined business rules, ultimately minimizing errors and discrepancies in rebate management processes.

The other options, while addressing the need for validation, would either depend on external validations that may not always be reliable or would not provide the same level of clear tracking and accountability within Salesforce. Custom fields offer a built-in solution directly linked to the journal entries.