Invoice approval by supplier type - define exception

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Hi,

Our Payables invoice approval rules workflow is built based on Cost centres (1st segment of the account code combination) and supplier type.

10 distribution lines with a different cost centre for each will trigger 10 approval request to its respective approvers. Approvers are role and user based (not approval groups)

For some of the supplier types, the approval is split

Eg: Supplier type "Food", the approval request must go to Approver listed in the Food data set for a certain number of cost centre

But if the cost centre in the Distribution line is not listed in the Food data set, then the approval request must go to the approver identified for that cost centre in the Generic accountant data sets (role or user)