Solution : https://service.sap.com/sap/support/notes/1459050 (SAP Service marketplace login required)
Key words :
process longer character chains, c-call dynp_okcode_set, disp+work package, disp+work-package, sp patch level, transaction parameter reason, parameter values transferred, longer strings, patch level, work properly
Related Notes :
| 1089798 | NWBC: SAPGUI field values not set |