Error in SXMB_MONI for Idoc to File Scenario (missing of field plant

Question

Hi SapAll.
here i have got a tricky situation where in a Idoc(Matmas.Matmas05) to file Interface thorugh XI there is an error message raising in sxmb_moni.
to get the conclusion for this error i just copied the message from Sxmb_moni and tried with  Message mapping in Design by just pasting there,after all this process iam getting the error message as below
Cannot produce target element /MT_FCI_MATERIAL/fcidataimport/objects/object/extensions/collection[3]/row/fields/PLANTEXT. Check xml instance is valid for source xsd and target-field mapping fulfills requirements of target xsd
When i go the mapping program it is defined as
if Matmas.matmas05WERKS(sender) exists then map werks to plant tex(reciver MType)t else map constant with(null value) to reciever(MType).
and the important thing is the here the occurance of field plant text is 1.1.
so iam not sure on why the error was raised in message mapping as every thing is fine.
can any body help in slolving this.
regards.
Varma

Answer 1

if Matmas.matmas05WERKS(sender) exists then map werks to plant tex(reciver MType)t else map constant with(null value) to reciever(MType).
When WERKS's is absent the IF doesn't have a value and hence the whole context gets suppressed which returns the error. What you have configured would work fine if WERKS is there but with no value. Here the case is a bit different. WERKS itself is not coming. Your logic doesn't handle that. Hope you got what I intend to convey.
Correct me if I am wrong but the logic is you need to pass WERKS value to PLANTTEXT if value comes else map a blank constant...right??
If so, why not just use mapWithDefault
WERKS -> mapWithDefault(blank contant) -> PLANTTEXT
This way if WERKS comes teh value would be passed, if comes with blank value blank value would eb passed if doesn't come atall, even then a blank value would be passed.
Regards
Soumen...