Tolling / Sub-Contracting Material Quantity Change During Order Creation

[Former Member]

I have created a requisition for 80,000 KG of a tolling material. When converting the requisition into a purchase order, one of the components of the material goes from 45,881.875 KG to 45,881.874 KG, resulting in an overall amount of 79,999.999 KG and a mismatch between my requisition and purchase order.

I have checked the rounding profiles in the MRP 1 view for all the materials, and each is set to 1.000 KG. Why is this material component rounding down?

Thanks.

[Former Member · Accepted solution]

The base unit of the material is in KG, and the order unit is in LB.

[JL23 · Accepted solution]

so the reduced order quantity is not caused by an component that goes down. it is actually the other way around.

SAP converts the Kg from the requisition into LB in the PO.

And rounds the decimals.

Using this as basis then for the components.

The leading unit is now the order unit, which is LB. whenever you look at a oder quantity in KG, then SAP converts the LB quantity back into KG, which causes again a rounding issue.

That is one of the problems when the base unit is not the smallest unit.

[JL23]

is your base unit KG? or is it any other unit? is the order unit different to the base unit?