Multi Process Unique BusinessKey

[Michal_S]

Hi dear camunders,

I am trying to find a way how to use collectoin as unique businessKey for each call activity.
I have tried the following but it is not giving me exactly what I would like to have

thank you for any help

M

[Michal_S]

I have to add that in case I change the business key expression to clean EL expression the engine wont do any to string conversion (as supposed).

[Niall]

Can you upload your model?

[Michal_S]

Hi @Niall,
the following is the main process newMain.bpmn (4.1 KB)
and this is testing subprocess subPro.bpmn (3.3 KB)
testing payload

{
“messageName” : “testMSG”,
“businessKey” : “test”,
“processVariables” : {
“collection” : {“value” : “{"collection":["DOC1","DOC2"]}”, “type”: “json”}
}
}

edit: it seems the forum removed escape characters for the json payload the following is screenshot of it in case you would need it

[Michal_S]

I have figured it out. Since there is no tostring(), obviously I had to use value().

[Niall]

Thanks for posting the solution!