Hello,

in table 5902 "Service Line" there is a function name UpdateServiceLedgerEntry

if "Line Discount %" <> xRec."Line Discount %" then
ServiceLedgerEntry."Discount %" := "Line Discount %";
ServiceLedgerEntry.Modify(); line 5090

using customer license, service ledger entries require indirect permission to be modified.

Please add the permission statement in table 5902 "Service Line"

Permissions = TableData 5907 = rm;

Scenario to replicate: create a service invoice from a service contract and then update the amount in the service line.

Thanks,
Vasilis Charalambous