Receiver RFC error- RfcClientException: functiontemplate from repository wa

Question

Hi All,
I am in an R/3(IDOC) - XI - 3rd party(File) scenario. Need to do a lookup to R/3 from XI before file is sent to 3rd party system.
For RFC, I followed various blogs( currently using Michaels blog https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a03e7b02-eea4-2910-089f-8214c6d1b439 )
However I get the error in RWB:
"Error in processing caused by: com.sap.aii.af.rfc.afcommunication.RfcAFWException: error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: functiontemplate from repository was <null>"
Came across note : 730870 and it talks of metadata refresh. So I reimported the function module into IR, reactivated the comm channel but still the same error.
Do you guys have any idea why it could be happening.
To sum up,for RFC lookup I have created
1. RFC enabled FM in R/3
2. Comm Channel in ID
3. UDF (supplied the above comm channel and Buss syst name here and FM xml signature)
4. Used the UDF in existing Message mapping
( I have not created any separate Interface mappings for this...is it OK)
( My RFC function module will return a single field, but when I import RFC FM in IR, I do not see the return field, it has only the FM incoming fields...is that OK.....??? )
Any help/pouinters are welcome
Many thanks
Shirin

Answer 1

Hi Praveen,
Yes its an R/3 - XI - 3rd Party scenario.
To cut the story short, I am doing lookup to R/3 Due to some file sequencing requirements. This is the only option left as getting this data in the IDOC initially didnt help.
As you have pointed, can you help let me know how can I correct it in the UDF. (I am a javao novice, so appreciate if you could help me with it)
I have attached the UDF code below.
Many thanks
Shirin
Imports: java.io.*;com.sap.aii.mapping.lookup.*;
   //write your code here
  String content = "";
MappingTrace importanttrace;
importanttrace = container.getTrace() ;
//Filling the string with our RFC-XML (With Values)
String m = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><ns0:ZIFMS_GET_NEXT_NUMBER>xmlns:ns0=\"urn:sap-com:document:sap:rfc:functions\"><I_NR_RANGE_NR>01</I_NR_RANGE_NR><I_OBJECT>ZIFMS_INT</I_OBJECT></ns0:ZIFMS_GET_NEXT_NUMBER> ";
RfcAccessor accessor = null;
ByteArrayOutputStream out = null;
try
//1. Determine a channel (Business System, Communication channel)
Channel channel = LookupService.getChannel("BS_IFMS_GENIUS_UAT" , "CC_RFC_LOOKUP");
//2. Get a RFC accesor for a channel.
accessor = LookupService.getRfcAccessor(channel);
//3. Create a xml input stream representing the FM request message.
InputStream inputstream = new ByteArrayInputStream(m.getBytes());
//4. Create xml Payload
XmlPayload payload = LookupService.getXmlPayload(inputstream);
//5. Execute Lookup
Payload result = accessor.call(payload);
InputStream in = result.getContent();
out = new ByteArrayOutputStream(1024);
byte[] buffer = new byte[1024];
for (int read = in.read(buffer); read > 0; read = in.read(buffer)) {
out.write(buffer, 0, read);
content = out.toString();
catch(LookupException e)
importanttrace.addWarning("Error while lookup " + e.getMessage() );
catch(IOException e)
importanttrace.addWarning("Error " + e.getMessage() );
finally
if (out!=null) {
try {
out.close();
} catch (IOException e) {
importanttrace.addWarning("Error while closing stream " + e.getMessage() );
// 7. close the accessor in order to free resources.
if (accessor!=null) {
try {
accessor.close();
} catch (LookupException e) {
importanttrace.addWarning("Error while closing accessor " + e.getMessage() );
//returning the result u2013 RFC-XML.response
return content;