Solution : https://service.sap.com/sap/support/notes/70536 (SAP Service marketplace login required)
Key words :
system variable sy-sysid returns lower case letters, language english symptom archive link connection, additional key words adk, control record displays, solution general conversion, source code correction, file system, upper case, archive data, function 'retrieve'
Related Notes :
| 103733 | COMPOSITE SAP NOTE: ALL NOTES ON DATA ARCHIVING |