Solution : https://service.sap.com/sap/support/notes/300091 (SAP Service marketplace login required)
Key words :
prerequisites isu release 451the serial switching, 'serial switching' register relationship, additional key words, solution import aop031, secondary register, secondary installation, release 451, monitoring, correction, attachment
Related Notes :
| 197658 | EL* MRU/customer incorrect w. serial switching |