@mmoss you can configure history logging for this in Inventory > SerialNoReservation > SERIAL_NO_RESERVATION_TAB against column SERIAL_NO.

Have the same requirement and created this idea Part Serial History - include reservation/unreservation | IFS Community (24R1 SU12)

I see my reserved serial no for a Work Task in Inventory Part In Stock Reservations (INV_PART_STOCK_RESERVATION_UIV) , but I don’t have any records in in SERIAL_NO_RESERVATION.

Is SerialNoReservation only used for shop orders?

​@HAFFRASVE The records in SERIAL_NO_RESERVATION are the serial numbers that are reserved to the supply objects (shop order, purchase order, production schedule, etc.) prior to their receipt into stock. Think of this as temporary information as the records are removed from this table after the part serial is received into stock. After this point, of course, any reservation action pertains to the part serial not the serial number.

Thanks Matt. Then I’ll continue my search for a suitable table to log an un reservation from one of the tables used in  INV_PART_STOCK_RESERVATION_UIV

Tried MAINT_MATERIAL_REQ_LINE_TAB, but my reserved serial no was not stored in this table either.