Job Schedule inserts jobs before or after given date

Kinetic ERP
1

We do not use global scheduling. We do not use finite resources or finite scheduling. We use backwards scheduling. We only schedule the jobs once when it is first released. I am now going back and updating the job due dates to match our expectations of when the job will ship.

Sometimes when I schedule the job it sets the date way out from where I want. In extreme cases it sets the job out months from the requested date. I expect this is due to the job having a lot of parts to make, and long cycle times at each operation. This sort of make sense, though I am not sure why our infinite capacity would force this.

The bigger issue I have is when the job get scheduled before the date that I request. In one example, the original JobReqDate was 8/16/24. I rescheduled to 10/25/24, and it placed the job at 10/24/24. I don’t have any holidays, or other calendars impacting this date, so I am not sure why it would choose an earlier date.

Any scheduling pros on here recognize this behavior? I am just trying to understand it.
Thanks!
Nate

2

Check to see if you have a receive time of 1 setup at the part/part class level. This will put a 1 day buffer between due and required by date

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3

I don’t see where receive time is set on this particular part. I also do not have any part class setup for this part.

4

Receive Time can be set:
Classic: on the Part > Sites tab (lower right)
Kinetic Part> Sites> Planning card

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5

Check to see if you have a Prod Preparation Time value set in Site Maintenance

Site Maintenance > Enter Site > Planning > Prod Preparation Time

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6

You can also check the schedule priority code. I’ve seen weird behavior with the backwards flag and especially with the minimize WIP flag:

image

Another thing to check is the “Allow scheduling before today” in company configuration. When scheduling backward, if the job start date ends up in the past, the engine will automatically reschedule the job in forward if that check box is not checked.

In any case, scheduling logs is a great place to understand what went wrong.

Good luck !

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7

I checked the part - no planning time set in there.
I checked site maint > Planning - no prod prep time set there.
I checked company config > modules > production > job - allow scheduling before today is unchecked.
Our Scheduling priority code is always set to normal, which has schedule backwards, and minimize wip checked.

8

Did you check all the parts? Raw Materials? I would assume any receive time on any of the raw materials would push back the schedule.

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9

I had to go back and check. This part has only one assembly, with only one material part. That material part also does not have any planning parameters. This material is set to a part class, but that part class also does not have any planning parameters.

There have been no material (or labor) transactions on this job yet.

10

In site maintenance, I would check the backwards scheduling start. It defaults to midnight which can cause some oddness. I set ours to 11:PM. You can make a log of the scheduling process that may give you some clues. The KB below has where to set and find the log.

https://epiccare.epicor.com/epiccare?id=epiccare_kb_article&table=kb_knowledge&sys_id=6644d6361b251cd06e30fe60cd4bcbc0&searchTerm=job%20scheduling%20log

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11

This was it. Ours was set to midnight. I tried 11pm, and rescheduled the job.
And that totally solved the problem of it scheduling jobs a day early! Thank you!

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12

If we have no finite resources, and we do not check finite capacity, what else would cause a job to be scheduled later than the date we request?

13

Here’s some possibilities

  • “Allow scheduling before today” in company configuration. When scheduling backward, if the job start date ends up in the past, the engine will automatically reschedule the job in forward if that check box is not checked. The resulting Due Date may be later than expected
  • Material constraints
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14

Wooo!!! That did the trick! For better or worse, we can now specify the actual date we want the job to be due by.
Thank you!

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