UOM Creation in EHS

[former_member212503]

Hello Experts ,

Have a need to create new UOM for ehs characteristics . Need to create uom like g/eq and kg/eq and should be able to group together so that it can be used in char as a numeric format and assign these two unit of measure .

also have another unique reuirement to group weights , distance and time together so that we can do selection of any one of these uom in VAT -Char in Property Tree .

[christoph_bergemann · Accepted solution]

Dear Kirshna

we have still discussed "UOM" topic in one of your threads;

answers are clear. UOMs (and that was discussed in parallel threadI) are not ! part of EHS set up but "core set up part" of SAP ERP .

For:

"Need to create uom like g/eq and kg/eq and should be able to group together"

I assume "Eq" is coming from "radioactivity". Therefore you can not use "MASS" as UOM only. Not not sure in this context  But this is detail.

Just generate both UOMs (and use process as mentioned in reply). The "basic" UOM might be "kg"/Eq". You just need to prepare simple conversion factor to related go "g/EQ"" and then you have "grouped" them

In context  "also have another unique reuirement to group weights , distance and time together"

As expalined by Mark and still discussed in parallel thread: : this is not possible You must create three characteristics. One for "weight", one for "distance" and one for "time"

PLease check your thread ! (

Any answer was given there,.

Check as well

C.B.

For your wished UOM: do we talk about this, https://en.wikipedia.org/wiki/Equivalent_weight

For general purposes: please check:

Unit of Measure related settings in SAP - Application Server Infrastructure - SCN Wiki

and SAP help: Concept - Units of Measurement - SAP Library

Check as well: What is unit of measure and how to create it. | MM (Materials Management) Tutorials | STechies

Small PS (in context of

The affect is, that you can now use all units of dimension MASS - like g, KG, T, µg etc. - for this characteristic.)

This is only possible if you have done proper set up of "g", "kg",,,, as UOM; then the systenm can "convert" easily. Never had the chance to set up "fresh SAP" system. Noidea which UOM is delivered by SAP and which you must create by your own

But as mentioned in parallelt hread: THERE IS NO, ABSOLUTE NO, ERROR ALLOWED IN DEFINITION OF ONE NEW UOM. You must be 100% sure that set up is correct before new UOM will go live (and you can only correct errors as long as new UOM is not used yet)

[Mark-Pfister · Accepted solution]

Hello Christoph,

Christoph Bergemann wrote:


Small PS (in context of 
The affect is, that you can now use all units of dimension MASS - like g, KG, T, µg etc. - for this characteristic.)

This is only possible if you have done proper set up of "g", "kg",,,, as UOM; then the systenm can "convert" easily. Never had the chance to set up "fresh SAP" system. Noidea which UOM is delivered by SAP and which you must create by your own

In order to be able to enter a certain UoM for a characteristic all that needs to happen - from a technical view point - is, that the UoM is assigned to the same dimension as the UoM one used for the definition of the characteristics.

If you want a good working and consistent system it make sens to fully define the UoM - which includes the conversion to the standard UoM of the dimension.
Then you can use the nice conversion help in SAP EHS :

Kind Regards

Mark

[christoph_bergemann · Accepted solution]

Dear Mark

thank you  for your additional info, My intention was to make clear. any UOM you need, you need to define from technically point of view. If you do not define e.g. Mikrogramm you will nof find this "dimension" in the system.

In context of your picture: this is really a nice feature of EHS (I believe present now since EHS 3.1 ?? Can not remember): But small question to you: The system has converted the value "correct" but in display seems to have some "issues". You can see only "once" the "thousand" delimeter. I would have assumed. if SAP is consequent than the delimimeter should be present all over.

Therefore it should not show the value as: "1022999999.999,999 Mikrogram/m3" but as:

"1.022.999.999.999,999 Mikrogram/m3"

What is your thinking here?

C.B.

[Mark-Pfister]

Hi Krishna

Have a need to create new UOM for ehs characteristics . Need to create uom like g/eq and kg/eq and should be able to group together so that it can be used in char as a numeric format and assign these two unit of measure .

1. Create the two UoM with transaction CUNI in the dimension MASS.

2. Assign one of the new created units to your newly created characteristic. The affect is, that you can now use all units of dimension MASS - like g, KG, T, µg etc. - for this characteristic.

krishna gautam wrote:

also have another unique reuirement to group weights , distance and time together so that we can do selection of any one of these uom in VAT -Char in Property Tree .

You can only use one kind of dimension for one characteristic!

Therefore it is not possible to have one characteristic where you can maintain length and time etc... You would need to create two characteristics - one for the value and the other for the UoM (as phrases). But this creates all kind of other issues down the road....

Hope this helps

Mark

[former_member212503]

thank you Mark . Do you know which dimension does Acid number falls (mg KOH/g) falls under ?

[rohan_somji]

Hi Krishna,

UoM --- PROPOR --- Proportion

Int. meas. unit--- ACI

Commercial --- ACI

Technical --- mgKOH

Measurement Unit Text --- Milligram KOH per gram

Unit Text --- mgKOH/g

Regards,

Rohan

[Mark-Pfister]

Hi Kirsnah,

You Rohan posted it is a proportion because you compare weight with weight....

Please close the thread as your original question has been answered.

Kind Regards

Mark

[christoph_bergemann]

Dear Krishna

i can not 100% agree to feedback of Rohan. But this is a "philosophical" discussion.

First: you need to understand that the "chemist" loves values as "mgKOH/g". You will find many similar one. If you then start discussion you will detect: ok: the "g" in the dimentions is really of type "mass" dimension. But the "mg KOH" is a "translation" of the result of the measurement in something which is "common" tobe shared within chemical community. Now the philosophy is starting. if you deeply discuss with the chemist you can "ignore" the "KOH" part and once again we have the dimentions"mass". So you have a UOM of type "Mass/Mass" and for that normally MPROPOR is used. PROPOR is used for topics as:

1 from 1 Million etc. (and the "1" does have no dimension). (so both UOMs havin no dimension)

for this: e.g. check https://en.wikipedia.org/wiki/Acid_value

E.g. one "unit" which has some "similarity" is: https://en.wikipedia.org/wiki/Iodine_value

You can seperate these values in two "main areas". One area in "organic chemistry" and the other in "inorganic chemistry"

And now once again philosophy is started, on WWI report you would leke to print data as e.g. 1 mgKOH/g. To do so you must define "somehow" the mgKOH/g as a dimension

It is you decision how to deal with the "mgKOH" part...

You can write books on UOM definitions (and how your do the set up in SAP)

C.B.

[rohan_somji]

Hi,

If you need to create UoM then we have a transaction CUNI.

Regards,

Rohan