Solution : https://service.sap.com/sap/support/notes/84282 (SAP Service marketplace login required)
Summary :
Key words :
abap/4 development workbench licensean abap/4 development workbench license, functionality undersapnet ->registration ->namespaces->namespace createyou, -digit project id nx, desired installation numberthe release, central corporate group development, additional key words namespace, create extended table maintenance, obtain namespace license keys, separate namespace reserved exclusively, system groupan sap customer
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