Negative hard commitment against a work order from secondary location

Hi,

Using Lot control for raw materials.

At manufacturing constants setup is done to hard commit on work order print.

Commitment method is set to 3 – Using Lot Date.

Commitment date method is set to 1 – Lot expiration date.

At item level check availability flag is on.

In processing options of P31113 – Negative quantity on hand is set to 1.

Still when on hand quantity on hand is zero, negative quantity is hard committed against a work order from
secondary location.

Can anyone help me to identify
reason behind this and setup required to avoid this please.

Thanks,