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Production Order Job Scheduling: Backward time fence

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Posted on by NickLaenen 45

We're using job scheduling for production orders in D365FO and notice strange behavior. When scheduling the jobs we use 'Backward from delivery date', which causing strange start-end dates.

Example (scheduling same job every time):

Delivery date on the 25th of June is scheduled on the 28th of June
Delivery date on the 28th of June is scheduled on the 29th of June
Delivery date on the 10th of June is scheduled on the 10th of June

Somehow the backward from the delivery date option is not working correctly in our system, because the system does find enough capacity to schedule on the 10th, but doesn't find this capacity when delivery date is on the 29th. I was think about the 'Backward scheduling capacity time fence' in the master planning setup, but that only seems to effective on the planned orders created by the master plan, not the manually scheduled production orders.

I think I'm missing some settings here, anybody to point me in the right direction?

Categories:
Planning
Production Control
Settings
  • Suggested answer
    Adrian Serban Profile Picture
    Adrian Serban on at
    RE: Production Order Job Scheduling: Backward time fence

    Hi Nick,

    Looking at the Parameter 'Backward scheduling capacity time fence', this is setup on the Master Plans and Production orders can be created independent of a Plan. So, it should not impact Scheduling of Production orders.

    I suggest checking if there are Resources with the right capability and available capacity in the desired time frame, and if the Calendars have Working times. You could use Gantt chart to check the availability of the resources.

    Also, you could try to use the “Scheduling tracing cockpit” to try and understand why the scheduling engine does not find capacity in the desired time frame.

    docs.microsoft.com/.../scheduling-engine-performance

    You could also try to use hard link in the Route.

    If you can replicate this issue on demand from scratch or using demo data, I suggest to open a case with Microsoft support.

    Thank you,

    Adrian Serban

  • NickLaenen Profile Picture
    NickLaenen 45 on at
    RE: Production Order Job Scheduling: Backward time fence

    Hi Oleksiy,

    Production order is marked to an sales order in this case. I manually changed the delivery date and re-scheduled the order afterwards...

    We do have required capabilities, but that should not make any difference in this case in my opinion.

    I think the system should try to schedule the job on any date between now and the delivery date, starting as close as possible to the delivery date. If the delivery date is the 29th, it should try to schedule on the 28th, then 27th, then 26 etc.... until the current date. If it could not find any capacity, then switch to forward scheduling.

    We do have capacity on the 10th, but it will still be scheduled fot the 29th if I schedule with delivery date the 28th... does seems to be working fine, right? That's why I was thinking about the Backward time fence, which could be blocking in this case...

  • Oleksiy Khoroshylov Profile Picture
    Oleksiy Khoroshylov 1,740 User Group Leader on at
    RE: Production Order Job Scheduling: Backward time fence

    Hi Nick,

    Seems strange.

    Is production standalone (not connected to any requirement)? Did you manually populate delivery date on it?

    Do you have any capacity constraints on 6/28 and 6/25 that would prevent production job(s) scheduled on these dates?

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