How to use PREDECESSOR_PARAMETER in DECISION process type?

HI Guys,
I have a process chain where I need to use a decision process type and before it I have an abap program process type, so I have to get the result of my process type predecessor (Abap program process type) and fill in my decision process type to make a decision.
I have a look on PREDECESSOR_PARAMETER on DECISION process type but I don't understand how I can use it.
Now I am trying to figure out how to set parameters in a ABAP program running before the decision step and then using them in order to decide on the subsequent step.
Does anybody have an idea?
Thanks,
Angeli

Hi,
Have a read of this document and see if it answers your question
Using ABAP with Process Chain Decision Processes
Regards,
Gareth

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Today is my day of questions so here hopefully the last on....
Die anybody know the formula parameter "PREDECESSOR_PARAMETER" that can be used in the DECISION process type?
Google and sdn search provide exactly 2 results with this information:
<i>
PREDECESSOR _ PARAMETER: Runtime parameter of direct predecessor</i>
According to the familia editor the parameter is to be used as follows:
PREDECESSOR _ PARAMETER(<I_FIELDNAME>,<I_LOW_OR_HIGH>,<I_NUMBER_OF_VALUE>)
Now I am trying to figure out how to set parameters in a ABAP program running before the decision step and then using them in order to decide on the subsequent step.
Does anybody have an idea on that topic?
The topic might also be interesting for an sdn BLOG.....
Regards,
Minima

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How to use PREDECESSOR_PARAMETER in DECISION process type?

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