production schedule error

Dear experts I’ve a problem. I’ve created a Production BOM,Routing for an item. After creating a sales order and a firm planned order for that item… when I open the PRODUCTION Schedule from the manufacturing module i get this error: “production line of a production order is refering to non existent next/previous operation” How do i set this right. I’ve chnged the status of the firm planed order from realed to finished. I’m unable to view the scedule of the new orders that I bring in. Please help me… Shilpa

From the error message I would say go to the order, select the line button and then routing, then bring forward the previous and next operation fields and check the values in these fields, as Navision believes you have something in here you should not.