Complex PO Line Type problem

Hello All,

We are implementing Service Procurement module,

I have enabled the Profile option "PO: Service Procurement Enabled=Yes" in site level.

Created new Document Style with Milestone enabled. but still, I have "Fixed price service" Value basis=Amount, Purchase basis=Service, in Line Type.

My expected result is,  "Fixed price service" Value basis=Fixed Price, Purchase basis=Service.

Its not coming, actually I cannot able to select "Fixed price service" in line type, at the time of PO creation in BWC.

Fixed price Service Line type not coming for Complex PO only.

Please advice.

Thank you.