how to create approval workflow for adjustments/refund/write-off

Summary:

We gave a requirement that when a user created an adjustments/refund/write-off it will flow to the following approvers

Approver 1: 1k
Approver 2: once Approver 1 approves it will flow to Approver 2 same amount
Approver 3: more than 1k upto 1.5k
Approver 4: 2k up

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