# Prod Group GL Control VS Part Class GL Control

**URL:** <https://www.epiusers.help/t/prod-group-gl-control-vs-part-class-gl-control/53373>\
**Category:** Epicor ERP 10\
**Tags:** e10\
**Created:** [March 8, 2019, 3:04pm UTC](https://www.epiusers.help/t/prod-group-gl-control-vs-part-class-gl-control/53373 "2019-03-08T15:04:24Z")\
**Posts on this page:** 1\
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**Author:** ![tsmith](https://www.epiusers.help/user_avatar/www.epiusers.help/tsmith/32/64774_2.png) [@tsmith](https://www.epiusers.help/u/tsmith)\
**Post date:** [March 8, 2019, 4:00pm UTC](https://www.epiusers.help/t/prod-group-gl-control-vs-part-class-gl-control/53373/2 "2019-03-08T16:00:02Z")

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They both work at the same time. Part class is for inventory and purchasing: the Part Class GL Control type defines the inventory accounts that are affected when a part moves. Product Group is for sales, production, and revenue: it defines which accounts are affected on the WIP and cost of sales side.

> **[Part Class and Product Group fields](https://www.epiusers.help/t/part-class-and-product-group-fields/53211/2)**
>
> Your consultant is correct. I recommend reading up on the intended purposes of part class and product groups as they have multiple functions within Epicor. As for financial transactions, to keep this high level, product groups will direct GL...

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