Unable to create the approval rule condition with functional agreement currency

Summary:

The agreement has been created with foreign currency, whereas in approval we are unable to route functional currency based through standard attributes, which is required for agreement and negotiation award approvals.

The requirement is similar to functional ordered amount is available for PO, we require functional agreement amount and functional award amount to fulfill the business requirements.

Content (required):

Business user created the agreement with foreign currency due the rule condition unavailable the agreement went to error approval work flow.

The user defined attributes for currency conversion is not handy for the customer, the customer feedback is to apply standard attribute similar to "Functional Order Amount" for Agreement & Negotiation Award Approvals.