I receive error message O3 450 – Quantity conversion check failed for one item; all qty lines deleted – what does this mean?

This message is an SAP HPM message. During e.g. delivery posting or TD or TSW process execution, material documents via SAP function module MB_CREATE_GOODS_MOVEMENT are posted, which contain quantity values which are not directly calculated by calling the QCI, but determined otherwise by TD or TSW logic (e.g. splitting quantity values into several compartments or adding up component values for a Bill of Material (BoM) header material). Thus, differences may be detected when SAP calls the QCI to check if the material document to be posted can pass. If this is not the case, generic message O3 450 is issued – and not the original QCI message, which would be much more helpful.

In many cases, e.g. when a BoM material document is posted, the tolerance levels are defined too strict for the attempted material document posting and need to be increased e.g. for the BoM header material. The BoM header material QCI check before material document posting is also questionable, but appears to be a standard SAP legacy check.

Read the Tolerance Check FAQ for details.

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