File content conversion query

Question

hi,
i have sender and received side -file content conversion.
in sender communication channel -
Recordset structure is -> Header,1,Detail,*
Message type structure is
MT1 has 2 subnodes Header and Detail.
In my message type,there is no field identical in Header and Details. All fields are different.
(1) Is Key Field Name mandatory in this case ? If I am not giving Key field name,sender channel gives error. How to resolve it ?
(2) Input file comes from customer and in the input file there is no specific data to identify header and detail. 1st line shud be header and other lines shud be Detail ,they say. If no identification coming in incoming data,how can we set the key field name ?
rgds

Answer 1

Hi SAP PI,
                      For this moment try this.
Let the file content is like this
03456451     TESTDATABC 7645649 8746464
12344       60042
45678        60043
You try reading the file like this
<MT_S>
     <RECORDSET>
         <ROW>
                  <field1>03456451</field1>
                  <field2>TESTDATABC 7645649 8746464</field1>
        </ROW>
          <ROW>
                  <field1>03456451</field1>
                  <field2>TESTDATABC 7645649 8746464</field1>
        </ROW>
          <ROW>
                  <field1>03456451</field1>
                  <field2>TESTDATABC 7645649 8746464</field1>
        </ROW>
</RECORDSET>
</MT_S>
FCC is like this
Document Name : MT_S
Document Namespace: "put name space here"
Recordset Name: RECORDSET
Recordset Structure: ROW,*
ROW.fieldNames  field1,field2
ROW.endSeparator   'nl'
ROW.fieldSeparator   0x20
Once you get this in mapping use a simple UDF to ignore the first ROW values and read the rest.
Populate the target structure from the output of UDF for each field value.
Please let me know if you need the uDF and further mapping for this.
Regards
Anupam