1.错误信息
事务码:/IWFND/ERROR_LOG查看到错误信息:未为提供程序实现任务外观

2.解决方案
参考note:2348671 - My inbox error "Task facade not implemented for provider"
把系统别名对应的软件版本改成: /IWPGW/BWF
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Execute transaction code SPRO
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Click SAP Reference IMG or Press F5
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Navigate to the structure and Execute Manage SAP System Aliases as shown below by clicking on the time/green check icon:

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From the list of Aliases if it is not defined, you need to define it. In my example it is defined. All we have todo is update the Software version and change it from DEFAULT to /IWPGW/BWF as shown below (Important: Whichever system alias contains Software version: /IWPGW/BWF should be the one used/ defined for TASKPROCESSING version

3.效果

4.传输之后还得手动激活sicf服务
/sap/opu/odata/IWPGW/

CA_FIORI_INBOX
