Atleast two vendor quote received
1. Create PR. We dont know how much is the price of the material/service
2. Create RFQ with ref to PR and send to different vendors
3. Create quotation and compare the prices.
Before creating PO, I want the system to check whether there is minimum 2 quotation if the price is more than $10000.
Is there a solution which can be done using only configuration? If not, how to do with ABAP?
You can implement enhancement MM06E005 to perform checking during PO creation.
I assume the PO is created with reference to the PR or the RFQ, so from there, the enhancement will have to check the quotations attached to the RFQ.
OSS note 310154 explains how to issue error messages from ME21N.