How to handle the material purchase with advance payment requirement?

Hi,

The user has the requirement as below.

1. Material purchasing

2. Maintain the advance payment or Retainage release on the PO, and create the prepayment or Retainage release by matching the PO

3. The material need to be received into inventory for management

Now, we have the question as below.

1. If we choose to use standard PO, we cannot handle the prepayment and retainage information in the PO

2. If we use complex PO, we don't know how to receive the items to inventory by work confirmation

Please advise how to deal with this requirement.

Regards,

Echo