Planning worksheet

Hello all,

I have a query relating to Production BOMs/routing and the planning worksheet. If i have two identical sales order for the same BOM, when running the planning WS two entries are correctly created. However when looking at the plannning start/end time the dates are exactly the same for both orders even though the same routings are being used and therefore the WC's are at full capacity (actually over capcity) . Is there a a reason why BC does not stagger the start dates and end dates so they are not running as parallel but serial so If i then check the load against the WC's the capacity is at its max rather than going over the allocated time allowed. It appears i could create unlimited orders and every production run would be running at the same time, which or course is not possible. What am i missing!. TIA. Andy.