What a two-level approval process protects
Manager approval and director approval do different jobs. Together they keep an order from going out on a single signature.
Why one signature is not enough
An order reviewed by one person depends on that person catching every problem. A second level of approval adds a different perspective, usually from someone looking at the whole organization rather than a single location.
It also protects the people involved. When an order is questioned later, the record shows exactly who approved it and when.
How the levels fit together
A storekeeper raises the request for their location. The operations manager reviews it across locations and approves. The director then gives the final approval that unlocks the order.
Manager approval alone should never release an order. The system should say so clearly, so nobody assumes it has been sent.
Keep the trail
An approval trail turns a decision into a record. Who approved at which level, and on what date, should be visible next to the order itself rather than buried in an email thread.