As far as I know the minimum batch size for MRP Planned Production orders is set in Item / Default Order Settings / Inventory / Min. Order Quantity. The issues that I have is that MRP applies this same volume to Planned Transfer Orders. This significantly affects the MRP in both planning & accuracy as per the following example: - My actual Minimum Production Batch size is 1000 L (this is what is set in the Default Order Settings) If I have a demand in Warehouse Y which is being filled from Warehouse X, MRP will create a Planned Transfer Order of 1000 L as per the Min Order Quantity. As only 400 L is available at Warehouse X, it will then also create a Planned Production Order of 1000 L. This then flows on through to all the raw materials as per the BOM. The result that I should be getting is a Planned Transfer Order of 200L, simply transferring 200L of the 400L in Warehouse X to Warehouse Y with no additional Planned Production Order. (If I apply the minimum transfer order quantity to the Min Order Quantity field, it will then be correct for the Planned Transfer Orders but not for the Planned Production Order. I realise that you can set the production volume in the BOM, but this does not flow through when running MRP)
- My actual Minimum Transfer Order volume is 200 L between Warehouse X & Warehouse Y (I don’t know where to place this setting in the Default Order Settings as I have already used the Min. Order Quantity to set the minimum batch size)
- Stock on hand in Warehouse X is 400 L
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