Combined Correlation

Hi there,

i'm currently trying to implement a BPM process. For processing the incoming data, I need one process instance for each "PROCESS_KEY" AND "DOC_TYPE". Therefore, I tried to put these two fields into one correlation as well as using two correlation. But always, each input file runs into the same process instance. Has anybody an idea for solving this problem´?

Here's an example, how it should work:

File 1:

leads to the following process structure:

Process instance 1: File 1, File 2

Process instance 2: File 3

Process instance 3: File 4

Help is (as always) highly appreciated.

Cheers,

Matthias