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Can some one give an example in what Scenario i will get a Planned order with Action Postpone
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Hi Yashpal,
You can find a blog which explains a certain scenario: community.dynamics.com/.../master-planning-messages-in-dynamics-ax-2012
Action messages are generated by the master planning calculation in response to changed requirements.
For example, the ship date or quantity may have changed on a sales order for which you have already created a purchase order to fulfill the demand. In this case, one or multiple action messages generated by the master planning calculation.
If there is mismatch between your demand date and a later dated planned supply because of lead time or other settings like a time fence, then mrp is advising that its done the best it can and that your order data and mrp planning rules/leadtimes are at odds, so based on the coverage settings it generates messages to advise the master scheduler who then needs to either expedite the supply or to delay, i.e. to postpone, the demand, or just live with the fact his order promise will not be met because he prefers to se the actual requirement date to ensure the order is expedited.
Hi, thanks you for your response, i think i was not able to convey my issue properly.
My question is , in what Scenario a Planned order (Not Actions), will have gave Action as Postpone
One factor is configuration i.e. you have the message turned on in the coverage group. Another configuration that affects this the In the "Futures message" fast tab, field "Use futures date as requirement date." This field automatically updates the requirement date of the planned order (which type of order depends on which of the fields you enable) to the futures date.. Negative and positive days and tie fences also affect whether messages are generated. for date related messages calendars and order dates, led times, and policies drive messages.
In the mrp session log Master planning”–>”Setup”–>”Plans”–>”Master plans” and clicking the “Session log” button you can see the stages it goes through/ first it 'gets ready. basically to decide what needs to be planned ant ends up with records in the Reqtrans table.
Next the coverage stage creates planned orders.based on Reqtrans.
Then if Action messages are configured there is another phase to review whether the orders planned can be 'improved'. The action messages are calculated in sequence after the planned orders are generated. It’s not until the action messages look at the whole requirement profile – planned orders included – that AX can see that it might make sense to change a planned order. It may be that one message in isolation does not make sense, a cancel message for one planned order might trigger a postpone message on an another.
So in the session log you are looking at these steps:
However, there is another twist to the tale, here are two ways to start MRP and they use different classes and depending on which you run you might get some differences in planned orders and messages. n case of Item MRP, the system calculates action/futures only for receipt net requirements which were actually used in the current MRP session (at least one record in coverage was created for these receipt net requirements). In case of Full MRP, the system calculates action/futures for all net requirements which hves the same itemid+coverage dimensions combination as any of the requirement used in the current planning session. So we can expect different messages.
Consider an item with four sales orders in the same period. Each sales order plans a production order. If the mrp policy is requirement, then a period policy of weekly or period might wan to group orders, but mrp will also see that some of the planned order supply is then ahead of demand.That then then blows sot many components each of which ma have different planning polices. Delete req trans and the last master plan and try some scenarios with different policies, different negative days etc in a test system look at the session log and the Explanation tab and the messages will then make more sense.
There have been several hotfixes in this region for example an old one is https://support.microsoft.com/en-us/help/2697476/reqpo-records-that-have-corresponding-reqtrans-records-are-created-dur
hi Yashpal,
I agree with you, system should just create a new planned order on the action date rather than postpone a planned order
It's a planned order so it's not a big deal if system deletes the old one and creates a new one
None of the reponses answers your question
Cheers
Hi Nvbt,
When we select "Postpone" message against any planned order (Purchase/Production), system generate action messages to move order to later date. We have "Postpone margin field", we can specify there maximum number of days between receipt and issue without postpone action to avoid generating message.
For example: I dont want system to generate postpone message in which the difference between the supply and demand is 10 days or less.
Junaid Idrees I have just tried putting in advance & postpone margins but it doesn't seem to work? I've added in 7 to both fields to indicate I don't want messages within a week. I have only run MRP against those particular items rather than a full mrp run. Would this be the problem?
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