RE: Why Work Centers on BoM Items?
I understand routing pretty well and have been involved in setup of the same since the 90s. Operations > Work Centers > Resources... Direct/Indirect... Subcontractors, etc. Recently did implementation of ECi M1 and will soon be doing Epicor Prophet 21...
My question is solely in the context of webERP. We do not have all the pieces so how are webERP users making use of Work Centers on parts? The Work Center does not show up on Work Orders, let alone on parts, so how is this being done today? When webERP users create Work Orders and issue them to a shop how does the shop manager and shop resources know where to do the work?
And... We do not have any build/work instructions (Operation Details) on the Work Orders. I am NOT critiquing webERP -- I am only looking for actual examples of how webERP users are doing it today so I can get a handle on the process and workflow. Even in the old Wang mini days Work Orders had enough data that if one fell on the floor it could be picked up and executed. Each Work Order contained Operations, Work Center(s), and Resource(s) and Resources. I one case Resources were very important as we had a lane of lathes used for making enhanced surface tubes for heat exchangers. All the lathes were in in one Work Center so the Resource IDs were paramount (i.e., Employee# @ Lathe#). Work Centers were always attached to Operations, not Parts.
More thoughts...
Let's say we have a very simple BoM with two or three parts to be assembled into one new part all at the same Work Center. How would we account for the WC setup in webERP? It should go to the new/top part but since we have two or three parts, each with the same WC, how would this be done? The WC setup time should be added as overhead to the new/top part, not the parts that made the part.
In our case we have simple BoMs consisting of just three parts -- A kit, labor, and water. We issue a WO to mix/blend the kit and water and the WC setup time goes back to the end product as overhead. Therefore we have no need for WC at the part level.
Looking at Routing:
Operation > Work Center(s) > Resource(s) so setup cost for each WC rolls up to the Operation, which then rolls up to the part owning the Operation. If we are not absorbing/recovering this cost as production overhead it goes to part overhead. Are we using Parts in BoMs to represent Operations?
Perhaps I am just confused in the context of webERP...
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