N:1 Mapping and Matching Lines of Message 1 to Message 2

Hi Everyone,
I have an n:1 mapping and I need to match up the lines of message 1 to the lines of message 2 to map the target. For example:
Source 1
Key1 = A, Key2 = A, Key3 = A, Field1 = Red
Key1 = A, Key2 = B, Key3 = B, Field1 = Blue
Source 2
Key1 = A, Key2 = A, Key3 = A, Field1 = Wagon
Key1 = A, Key2 = B, Key3 = B, Field1 = Sky
Target:
Key1 = A, Key2 = A, Key3 = A, Field1 = Red Wagon
Key1 = A, Key2 = B, Key3 = B, Field1 = Blue Sky
I think that this is possible in a user defined function that basically loops over the Source 2 for each value in Source 1, and I even think I saw a solution to this common problem posted before, but I have searched and can not find it. Any help is greatly appreciated!
Thanks
Peter

Hi Peter,
From the example that you have given, mapping between the two source messages has been
done only for the fields("Field1"). Infact, you are combining the values of the fields
in the both the source messages-to show in the target message.
I think this can be done by creating one source message type which stores both the source
messages (n:1) and then you can map both the field1s of the source messages to field1 of target
message by using the concat function.
Hope this was helpful.
Regards
Sushumna

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N:1 Mapping and Matching Lines of Message 1 to Message 2

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