Create a BPM approval rule to match the Expense Report Owner to a value in a DFF

Summary:

We would like to create a BPM approval rule that says: If Expense Report ID doesn't match Expense Report Owner ID from the Attribute Number DFF segment then Reject.

Content (please ensure you mask any confidential information):

We have a requirement to select an Expense Report Owner in a DFF field in order to use that value within another DFF to derive a list of values. The concern is that a delegated user will first select the Owner within Expenses in the standard way and then select the Owner within the DFF segment and there is a risk, particularly where the expense report preparer may be delegated to by multiple users, that the preparer may select an Owner in the DFF that doesn't match the actual owner. We would like to create a BPM approval rule that