Solution : https://service.sap.com/sap/support/notes/99143 (SAP Service marketplace login required)
Key words :
additional key words enhanced table maintenance, generating table maintenance user interfaces, customer-specific function groups, enhanced table maintenance, message 'function group, previous namespaces apply, function groups start, function groups, development namespace, special characters'
Related Notes :
| 84282 | Development namespaces for customers and partners |