MRP delivery date problem in Master Palnning

Hello everyone,

First, I have a problem with my MRP generation, I get the right quantities but not the good corresponding delivery dates :

And second I can’t even change the principle, it’s greyed out and I don’t understand why :

Thank you!

Well AX is planning the date based upon material or capacity - are you using finite material and capacity in the scheduling? What is the lead/time or routing (I cannot see from the image the planned order type although the implication is production)? Why do you believe the date is wrong and what do you believe it should be and why.

The principle is only available to change in certain forms from memory.

Hi Adam,

Okay, I have this demand forecast :

pastedimage1476281932211v1.png

And when I open the MRP dialog I’ve got this (the principle is greyed out):

pastedimage1476281932211v2.png

And the result I get is this :

pastedimage1476281932211v3.png

I get all the planned orders on 11/11/2016 instead of each one in the week it’s needed.

My MasterPlan parameters are as following :

pastedimage1476281932212v4.png

pastedimage1476281932212v5.png

pastedimage1476281932212v6.png

I tried using sequencing (it was empty at first) but no difference, I still get the same dates.

Look at the pegging, there is a BOM item not in stock with a lead time in excess of 30 days but your coverage and forecast time fence are 30 days and therefore it is pushing everything to the end of the period - about the best guess I can give from the pictures. If you turned on action and future messages and set future from requirement dates it would align to the forecast with messages. That would be another test for you.