E1 Fulfillment and Substitute items


In E1 we are currently using Order Fulfillment and would also like to be able to use the Substitute Item functionality. We have the Item substitute in P4104 established and the customer allows substitutes but the SO entry does not work correctly. If we turn on Availability Checking in P4210 -5. Commitment – 1. Activate Availability Checking everything works as it should. But Availability Checking cannot be on if Fulfillment is working. Has anyone got this working with Order Fulfillment enabled?

We are on JDE E1 9.0 TR on Microsoft SQL Server 2008 R2 SP1.

Thank you