Solution : https://service.sap.com/sap/support/notes/162108 (SAP Service marketplace login required)
Key words :
terms duplicate sap office users, duplicate mail usersbas_officebas_clientcopy reason, duplicate adrp entries, client copy error, send messages, message so309, sapoffice exists, zsadrclear report, z_ossnote 532183 report, newer note 532183
Related Notes :
| 532183 | Non-existent users offered for selection |
| 350101 | CC-TOPIC: Client copy and addresses up to 4.6D |
| 130540 | CC-TOPIC: Client copy and addresses in 4.0B |