EH&S WWI for GLM print request processing
we installed EH&S WWI for GLM print request processing scenario, following the note:"1394553", but when we try to print we receive this error from WWI:
Start Function 'WWI_PRINTREQUEST_CREATE'
Receiving data from client
calling RfcGetData returned 0
receiving data lasted: 0.0 sec.
Retrieving print request data from RFC interface
Using Temp Directory E:\WWI\TEMP\BSV100000000000062
Delete files in E:\WWI\TEMP\BSV100000000000062
Creating text file E:\WWI\TEMP\BSV100000000000062\r000000000062.val
Writing data to text file 39 lines, 1009 characters
Updating print request status from 0 to 1
[DB time] Writing print request lasted 9 ms
Start processing command 'Create print request' in synchronous mode
Creating print request 000000000062
WwiSapDms::retrieveDocument: RFC error when calling ABAP function moduleRFC connection is not Unicode
WwiSapDms::retrieveDocument: RFC error when calling ABAP function module
key : RFC_ERROR_SYSTEM_FAILURE
message : See RFC trace file or SAP system log for more details
Reading SBV document IB0120510 from Cache failed
WwiCacheRead resulted with -1
Updating print request status from 1 to 5
[DB time] Writing print request lasted 4 ms
##### Command 'Create print request' finished with status E #####
Storing ERR file E:\WWI\TEMP\BSV100000000000062\l000000000062.err into DMS succeeded
Sending data to client
calling RfcSendData returned 0
sending data lasted: 0.0 sec.
Elapsed time : 0.1 sec.
We don't understand what kind of RFC or what part of customizing we have to check, could you please help us?