Not sure how to add parts per million as a unit

[CH_9958537]

I am using Windchill PartsLink Release 12.1 and Datecode with CPS 12.1.2.0

How do you register ppm (Parts per million) as a valid unit in Windchill? It doesn't seem like there are any concentration units to base it on. I'm not a unit expert so I'm probably missing something obvious.

[joe_morton · Accepted solution]

Create the new quantity of measure per: https://support.ptc.com/help/wnc/r12.1.1.0/en/index.html#page/Windchill_Help_Center/typeattr/TypeMgrQuantOfMeasCreate.html

Parts per million is unitless, so you'd leave the units field blank. 

[SWeiler_9940261]

In older versions where enumerated customization is not in type and attribute management, you'll need to use enumCustomize. See support article:

https://www.ptc.com/en/support/article/CS32653

[CH_9958537]

I'm not sure I 100% follow what you saying but I'll give it a shot.