RFC Destination Settings for Workflow

[=?gb2312?q?weidong=20chen?=]

Hi Everyone,
 
We are in the verison of 4.6C.
 
I am also facing such problem about RFC Destination
Settings for Workflow .
 
When AutoCustomizing the 4.6C workflow environment
under transaction SWU3,
the RFC destination continues to show the message 'RFC
destination has incorrect password'.
 
when in 'Create logical destination for tRFC',click
the icon 'Synchronize Passwords'.
there is no error.However, when I do a test on the RFC
destination, it shows that
the ping was performed unsuccessfully and that the RFC
destination for SAP Business
Workflow is fully configured.
 
What am I missing?
 
Also, am I correct to assume from this message that
WF-BATCH and password are fine
since SAP did not prompt me for either one during the
test?
We currently have destination WORKFLOW_LOCAL_420 set
up on 4.6C.
 
As a side note, when user another user 'Mzhang' test
shows that the RFC has been configured completely.
 
Any reply will be appreciated!!!
 
Thanks,
Weidong Chen