How to set AP workflow approval using spreadsheet

Summary:

We have a requirement of AP Invoice workflow approval in 2 levels.

a) going to invoice creator's Manager /Requestor's manager approval. (Oracle standard and working as expected)

And after this Approval

b) goes to accounting review to another person (User is not a manager.)

we have DFF at Invoice header with accounting review. flag Y

And create a group at BPM with accounting review. We are passing the name of the accounting review.

Not sure how to set requirement b as a rule in BPM. And work together with a and b

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