Doubt on Mapping, Context handling/Node functions

Question

Hi Experts...
This is the structure of a sample message that we get from Agile. BOM1 and BOM2 are two BOMs (basically a material) having BOM Items A,B,Cu2026. (basically Material components)
PARTS and DOCUMENTS have the material related information.
Apart from that we have certain segments inside each BOM, called REDLINES, REDLINE BOM CURRENT, REDLINE BOM PREVIOUS (not depicted below) which contains information whether the material item has been added, changed, deleted or unchanged and some more information.
ROOT
     R1
          R2
               BOM1                              
               B-Item A
               B-Item B
                R2
                        BOM2
               B-Item C
               B-Item D
                  B-Item F
       PARTS
             BOM1
       PARTS
             B-Item B
       PARTS
             B-Item D
       DOCUMENT
             B-Item A
       DOCUMENT
             BOM2
       DOCUMENT
             B-Item C
       DOCUMENT
                B-Item F
The target structure has 4 different tables. One of them is a table structure called MATERIALS where we should have 7 records in this case.
For BOM1 and BOM2 we need to pass details from inside the same node + additional info from Parts/Docs
Same applies for B-Items.
Qn:1
How do I link Parts/Doc/R2 nodes  MATERIAL so that I can get 7 records?
When I link ROOT I get one record
When I link R2; I get 2 records (I tried changing the context to ROOT; dint work!)
When I link Parts I get 3 records
When I link Docs I get 4 records
Is there a way to link PARTS nodes + DOCS nodes to MATERIAL?
Qn2:
Do you think that for this case we need to split the entire document to 1: n as shown below? Is there a way without splitting? Coz I have a BPM calling a sync abap proxy to post, process and return data (ya we using BPM + a Sync call!!!!)
ROOT
BOM1                              
     B-Item A
     B-Item B
PARTS
     BOM1
PARTS
     B-Item B
DOCUMENT
     B-Item A
BOM2
     B-Item C
     B-Item D
     B-Item F
PARTS
     B-Item D
DOCUMENT
     BOM2
DOCUMENT
     B-Item C
DOCUMENT
        B-Item F
Qn3.
I read from somewhere that when we use sync call; the BPM as to get a response back within 30 s, else it will fail.. is that true?
Please help!!!!
Thank you.
Regards,
Smitha
Edited by: Smitha Madhavan on Jul 23, 2008 9:35 PM
Edited by: Smitha Madhavan on Jul 23, 2008 9:40 PM
Edited by: Mike Pokraka on Jul 24, 2008 1:42 PM
Edited by: Smitha Madhavan on Jul 24, 2008 6:41 PM
Read the "Rules of Engagement"
Edited by: Juan Reyes on Jul 25, 2008 8:44 AM

Answer 1

Thanks Kishore.
The sample file is very very big and data is distributed and difficult to understand. The one I have provided is therefore a simplified  model of the file. Let me narrow down to one step further:
How can we perform: if A_NUM = B_NUM; pass NAME
to the target field from the below structure:
ROOT
            NODE1
                        NODE2
                                    A_NUM
            NODE3
                        B_NUM
                        NAME
            NODE4
                        B_NUM
                        NAME
Thanks in advance!