Purchasing Document Approval

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Hello, 

we have issue to configure approval for change order.

Our target: If change order amount is equal 0 action > Auto approve, otherwise follow the defined role for purchase order with amounts. Example We have 3 role for Standard PO as below; 1. From 0 to 600,000 2. From 600,001 to 1000 000 3 From 1000 001 to 10 000 000 PO= 600 000 IF we create a change order with 0 change amount it should be auto approved, But if change order equal 10 000 it should follow 2nd role in above provided example.

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