Message SAP /ISDFPS/MM587 - Serial number &1 is not available in storage location &2

Diagnosis
Serial number &V1& is assigned to the equipment package formaterial &V3&. However, in storage locationV2, the serial number is not part of the usable stock. as a result,the serial number cannot be assigned to the handling unit.

System Response
You cannot generate a handling unit from the equipment package, as theserial number specified in the equipment package cannot currently beused.

Procedure
Post the serial number to the storage location or check the definitionof the equipment package. You may have assigned the wrong serial numberto the equipment package.