# UOM Conversion **URL:** \ **Category:** Epicor ERP 10\ **Created:** [November 21, 2016, 4:42am UTC](https://www.epiusers.help/t/uom-conversion/36368 "2016-11-21T04:42:26Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ckrusen](https://www.epiusers.help/user_avatar/www.epiusers.help/ckrusen/32/50584_2.png) [@ckrusen](https://www.epiusers.help/u/ckrusen)\ **Post date:** [November 21, 2016, 4:42am UTC](https://www.epiusers.help/t/uom-conversion/36368/1 "2016-11-21T04:42:26Z")
UOM conversion can’t be done if any part transaction has occurred? The Help states that it will fail if certain records exist (PartBin, Open Order demand, etc…) and: `* No transactions referencing the part` Since we didn’t notice the error until after a STK-CUS transaction happend, how can we fix this? FWIW - not changing the UOM Class, just the Inventory UOM (from EA -\> BX20 (box of 20) ) ---
**Author:** ![jgiese.wci](https://www.epiusers.help/user_avatar/www.epiusers.help/jgiese.wci/32/51553_2.png) [@jgiese.wci](https://www.epiusers.help/u/jgiese.wci)\ **Post date:** [November 21, 2016, 5:20am UTC](https://www.epiusers.help/t/uom-conversion/36368/2 "2016-11-21T05:20:07Z")
Create New parts. Or see if the track multiple UOM can do what you need. That’s about it unfortunately. Joshua Giese CTO 920.437.6400 x342 Wisconsin Converting Inc. ---
**Author:** ![gpayne](https://www.epiusers.help/user_avatar/www.epiusers.help/gpayne/32/55751_2.png) [@gpayne](https://www.epiusers.help/u/gpayne)\ **Post date:** [November 21, 2016, 5:46am UTC](https://www.epiusers.help/t/uom-conversion/36368/3 "2016-11-21T05:46:34Z")
You have to jump on UOM issues quick. There are a few things you can do, like uncheck the has been used checkbox, but they have to be done before receiving the new part in on a PO. The UOM conversion is not very likely to fix any real mistakes. Greg Payne Compulink Cables ---
**Author:** ![Nancy](https://www.epiusers.help/letter_avatar_proxy/v4/letter/n/4af34b/32.png) [@Nancy](https://www.epiusers.help/u/Nancy)\ **Post date:** [November 21, 2016, 12:52pm UTC](https://www.epiusers.help/t/uom-conversion/36368/4 "2016-11-21T12:52:31Z")
The only time we’ve found the UOM conversion useful is if immediately after a part has been entered and saved with wrong UOM (i.e., this most typically occurs upon duplication of part with different UOM), then we can run the UOM conversion, prior to any part transactions against it. Once there’s part trans, you’re (and we frequently!) are stuck ☹ Nancy ---
**Author:** ![ckrusen](https://www.epiusers.help/user_avatar/www.epiusers.help/ckrusen/32/50584_2.png) [@ckrusen](https://www.epiusers.help/u/ckrusen)\ **Post date:** [November 21, 2016, 2:24pm UTC](https://www.epiusers.help/t/uom-conversion/36368/5 "2016-11-21T14:24:20Z")
Wow … I could see not allowing change of UOM Class after transactions, but not being able to change the IUM (while staying within the same class) is down right awful. ---
**Author:** ![DavisStd1](https://www.epiusers.help/letter_avatar_proxy/v4/letter/d/9f8e36/32.png) [@DavisStd1](https://www.epiusers.help/u/DavisStd1)\ **Post date:** [November 21, 2016, 3:32pm UTC](https://www.epiusers.help/t/uom-conversion/36368/6 "2016-11-21T15:32:23Z")
This is easily the MOST frustrating part of E10. The only way out is to make a new part number. ---
**Author:** ![mjfwagner](https://www.epiusers.help/user_avatar/www.epiusers.help/mjfwagner/32/17930_2.png) [@mjfwagner](https://www.epiusers.help/u/mjfwagner)\ **Post date:** [November 21, 2016, 4:16pm UTC](https://www.epiusers.help/t/uom-conversion/36368/7 "2016-11-21T16:16:25Z")
Have you tried the Part UOM Conversion maintenance under System Maintenance? Can’t tell from the post if you tried it or not Mark Wagner Sr. Partner Capstone Alliance Partners 888.597.2227 Ext. 71 \<888.597.2227%20Ext.%20714\>2 | 904.412.6847 [mwagner@capstoneap.com](mailto:mwagner@capstoneap.com) (cell) | [www.capstoneap.com](http://www.capstoneap.com) ---
**Author:** ![ckrusen](https://www.epiusers.help/user_avatar/www.epiusers.help/ckrusen/32/50584_2.png) [@ckrusen](https://www.epiusers.help/u/ckrusen)\ **Post date:** [November 21, 2016, 4:21pm UTC](https://www.epiusers.help/t/uom-conversion/36368/8 "2016-11-21T16:21:50Z")
Yes I have. But since part transactions have happened, it generates an error.