Binding variables in Process Flows

I'm attempting to bind a variable defined in the Start activity to a Mapping activity's Input parameter. When I expand the Mapping activity and select the Input parameter in question, it forces me to explicitly enter a value. It does not show the Start activity parameter in the Binding listbox.
This appears to work fine for other activities within a Process Flow (Email, FTP, Transform, Subprocess) but not with a Mapping. Is this a bug or by design?
I'm working on OWB 9.2
Dave

Hi David,
Sorry for the delay, I just tested this and mine nicely complies to what I want. Added a number input parameter to a mapping. Then added a number input in the Start activity. This works.
Then I tried to do a string input on the start and try to bind that, and this does give the your result.
Process flow only allows you to bind variables with the same data type (or equivalent). So please take a look at the datatypes for the mapping input and the Start activity parameter.
If they are the same (e.g. integer and number, string and varchar2) this works.
Jean-Pierre

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