E4123 Cmd Rej: SAPC entry not found for the linkset
The value specified for the sapc/sapca/sapci/sapcn/sapcn24 parameter must already exist in the Destination Point Code table.
Recovery
Display all the destination point codes in the Destination Point Code table. Enter the rtrv-ls:lsn command.
Re-enter the chg-ls command that generated this error message, specifying a valid combination of parameters. Refer to the command description in Commands User's Guide and to the Database Administration - SS7 User's Guide for assistance.