Solution : https://service.sap.com/sap/support/notes/1339429 (SAP Service marketplace login required)
Key words :
prerequisites advance development solution apply, customer defined fields readonly, customer defined fields reason, sym text mlen 800 period 20 5, customer defined fields, symptom user open, run transaction se24, object type field, click 'change' button, manual test task
Related Notes :
| 1337103 | PC2.5 Support Pack 8 - Master Note |