Question: Documentation/Help on Co-Parts?

Epicor ERP 10
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10.2.200
I wanted to ask if anyone has documentation on setup and use of Co-Parts in Epicor 10. I’ve been searching the user groups for anything I can find, however I wanted to ask if anyone had material on the functionality they’d be willing to share, as there is scant information from Epicor itself. Any help would be greatly appreciated! Everyone stay safe and healthy!

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My best suggestion is to try it out…

  1. first create a job for part X, and then add part Y (and part Z) to the job as a co-part(s)…
  2. Look at MRP Time-Phase for the parts, look at the Job, and the job-traveler… understand how they work.
  3. now do all the operations… you will find that when you finish the FINAL operation, you will need to specify how many of each co-part you finished.
  4. also note how you will need to receive all the co-parts to stock.
  5. once you have seen how jobs look and react with co-parts, then you can also engineer your co-parts into your revisions… Example:
  • when making Doughnuts, for each doughnut made, you get one doughnut hole… you put this into the co-parts on the part revision… you also need to specify how much of the cost is transferred to the hole.
  • when making doughnut holes by themselves, you do NOT have to have the doughnut as a co-part, but you COULD… you could say that for every 5 holes, that you also want to produce one doughnut.

Also note that if you do Job Batching, you also utilize the Co-parts functionality, because the batched jobs all become coparts to the main job.

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Co-parts can be fickle and learning how to use that feature may require a lot of trial and error depending on what you are trying to do with them and the processes you follow internally. If you subcontract with co-parts be prepared to pull your hair out. There is for sure no 1 size fits all with them. What I can tell you is be very aware of your yield, qty, and cost factor fields. Those are going to be key in making sure your costing comes out. For us and our process I like to think of the material and labor factors as a percentage represented between 0-1000. If I have $1000 of material and say 5 parts of varying size coming out of those materials what percent of those materials will each co-part consume assuming it’s not the same amount (think different sized or weighted parts). Again applicable to us and what we do but not all cases.

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The most useful documentation Epicor provides is in the Advanced Production Education Course manual, which can be accessed through your Training (or Demo) environment. As both @timshuwy and @jgiese.wci mention, it can be pretty finicky, and without an actual business case it’s hard to give “general” advice. What specifically are you trying to use it for, and what problems are you having?

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