Defaulting Buyer based on Requisition Amount

Summary:

Hello,

I want to ask if there are any ways to defaulting the Buyer during submitting the Requisition besides using the Manage Buyer Assignment Rule? I want to default a Buyer, let say, if the Requisition Amount is more that 20k, it will automatically select Buyer A and will select Buyer B if otherwise.

I tried using Manage Buyer Assignment Rule to do that, I noticed it only based on the Limit Line Amount and not the overall Requisition Amount. Can anyone help me on this? Thank you.

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