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Different quantity during WM staging of process order

Nov 08, 2016 at 04:42 PM

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During creation of a process order, component is displaying correct qty as per BOM, e.g. 100 ML. However, when we release process order and batch determination occurs, the qty is changed to 500 ML.

Testing and investigation has shown this is linked to the alternative UoM in the material master for the component, as the Base UOM is PC. 1 PC = 500 ml.

Amending the conversion to 1 PC = 200 ML then updates the value in the PO to 200 ml, so it appears the system is updating the value in the PO to match 1 PC when batch determination occurs.

How can I stop this so the system takes the qty in the BOM instead?

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Not much family with production environment however in one of my previous implementation one of my PP consultant did some setting in T-Code : OS29 with respect to BOM explosion. Good to have a look

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4 Answers

Raghu Govindarajan Nov 08, 2016 at 07:13 PM
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Check your "lot size data" in the MRP1 view of the material master if this is happening at the requirement level. This could also happen in WM if you have SU management and rules to pick only full SUs.

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Former Member Nov 10, 2016 at 11:35 PM
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Looks like your AUOM (ML) is smaller unit than Base Unit (PC).

Pls check the "Display UoM" field in your Batch Search Strategy Header. Is it "A" or "B". If it is "A" then try with "B", test and see if system still behaves the same way.

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Raghu Govindarajan Nov 11, 2016 at 03:30 PM
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Good catch Harshesh Patel. Just as a general comment, it is always a good idea to have your base unit be your smallest unit of measure. AND in production, never ever change the unit conversions when you have stock - especially in this circumstance of having a smaller alternate unit. For example...

With the original conversion, you bought 10 pc x 500 ml = 5000 ml of product. Now change the unit conversion to 1 = 200ml. Your stock will now say that you have only 10 pc x 200 ml = 2000 ml of product.

If you had the ML as base and PC as alternate -> you originally buy 10 x 500 ml = 5000 ml of product. When you change your conversion, the system will still say you have 5000 ml, so your valuation, actual product stock, etc stays the same. As far as conversion, the system will say you now have 25 pc x 200ml = 5000 ml in stock. As you can see this will come in handy if there are real changes to packaging size or new packaging in your operation.

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Michelle Birks Nov 22, 2016 at 10:19 AM
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Thanks, everyone, for your suggestions. The issue turned out to be that as our Base UOM was PC and we have PC set up to not allow demicals, the system was rounding everything up to one full unit.

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