You can delete a system message before its lifetime has expired irrespective of its disposable method. In addition, you can delete both active and deactivated messages. When you delete an active message, a delete message is sent to all the devices that have received the message.
You have logged on to the SAP NetWeaver Mobile Administrator.
More information: Logging On to SAP NetWeaver Mobile Administrator
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1. Choose Mobile Overview.
2. In the Operations section, choose System Messages.
3. Under Search System Message, enter the required search criteria and choose Go.
4. From the search results, select the required message.
5. Choose Delete.