Purchase Order: What is the role of the signing authority

Purchase Order: What is the role of the signing authority

I'm hoping you can define the roles defined in the PO module and what actions or notifications are associated with the role:

For example, the roles, as far as I can tell are:
  • Owner
  • PO Approver
  • Signing Authority
From the documentation, it looks like the owner should be the technician responsible for tracking and completing the PO.
The approver is obvious, and it could be used to achieve both fulfillment requires (technical require of the products being ordered) and financial approval (approval for the cost and allocation of the PO.

I'm drawing a blank on the signing authority: Should this be the person who signs of financially, in terms of approval for payment?

Thanks,
Adam

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