Effects of Changing Unit of measure

[Former Member]

Hi

We have a customer requirement where in we need to change the base unit of measure for some materials which has the open items as well as stock in the current period and may be in the previous period. They however do not want to change it at the transactional level and want to get this updated at the table level.

Now i wanted to know what effect will it have on the system and what would be the repurcussions on the overall functionality.

Please let me know so that i can let the client know the effects of the same and recommend whether we can go ahead with the same.

Thanks in advance.

Warm Regards

Sachin

[former_member335885 · Accepted solution]

HI,

Base unit of can't be changed once you have created the material and there are stocks.

You can change the base unit of measure if there is no stock of the material during current and previous period. Also, there should not be any open PO's & requistions.

SAP help describes in the following manner about change of unit of measure which is self-explantory:

Diagnosis: You wanted to change the base unit of measure. However, you can do so only under certain circumstances, including the following:

If there are no stocks of the material in the current period and in the previous period.

If there are stocks in the previous period, you can clear them as follows:

a) Post the stock in the previous period to the current period (for example, using movement type 561) so that the stock for the previous period is the same as the stock for the current period.

b) Clear the stock with the posting date in the previous period (for example, using movement type 562).

If no purchase requisitions, purchase orders, or scheduling agreements exist for the material.

Procedure : Choose Display errors to see why you cannot change the base unit of measure for this material.

The pushbutton Display errors appears only in dialog mode, not in data transfer or in mass maintenance. If this message appears in data transfer or in mass maintenance, and you want to know why the base unit of measure cannot be changed, access the material in dialog mode using the relevant transaction below, try to change the base unit of measure as required, and then choose Display errors:

Thanks & Regards,

Kiran

[former_member192897]

Hi,

Please go through the Links provided:

http://www.sap-img.com/materials/change-base-unit-of-measure.htm

http://www.sap-basis-abap.com/mm/changing-base-unit-of-measure.htm

Reg,

Ashok

• Assign points if useful.

[Former Member]

HI,

The base unit of measure cannot be changed.

If one of the following cases occurs:

1. Planned orders already exist.

2. Material is a bill of material

3. R outings already exist that are assigned to the material.

4. Standard cost estimates for the current period already exist

5. Purchase order exists

6. Purchase requisition exists

[Former Member]

see if you want to change base unit of measurement then system will not allow you to do so when there is open stock avaliable.

Now in case you want to chage you can use unit conversion in MM. once you set the conversion it accoring posting will impact the MAP.

to over come such situation you can do one thing tell you client not to unit convertion now. clear all you stock by 261 and put the conversion then againg do 262.

simulate the case and check. it may help

[Former Member]

Hi,

For table level change of UOM, you will have no accounting docs type of things for any change..so for example, if your stock is presently 100 boxes, directly it will come to 100 gms, kg etc. ..depends on your new UOM.

so there will be accounting problem for the same. plus whatever POs are open, system will not allow you to do GR for the same, giving some error messages.

so best way is to create new material with new UOM instead of changing UOM. by that time , clear the stock of present UOM.

Reward if useful.

[Former Member]

Hi

Thanks for your input but am not clear on how the change of UoM will effect the accounting of the material which you mentioned in the reply. Can you please eloberate on this aspect please.

Regards

Sachin

[Former Member]

accounting means..where will you adjust the gap of stock? i mean from 100 box to 100 gm or 100 kg. you will have that much gap of stock.

in accounting view, your price is always per base uom, so stock valuation will be affected too.

[Former Member]

Hi

Thanks again for your information, how ever i am still bit confused as when i am doing a change of the Base unit of measure no dount from PAA(pairs) to PA(pairs)or something like that then the new base unit of measure will be overwrite the old one but the valuation should remain the same. This to the best of my understanding should not effect the valuation of the material.

Correct me if i am wrong.

Thanks

&

Regards

Sachin