You must bind all workflow element input and output parameters to workflow attributes. Bindings set data in the elements, and define the output and exception behavior of the elements. Links define the logical flow of the workflow, whereas bindings define the data flow.

To set data in an element, generate output parameters from the element after processing, and handle any errors that might occur when the element runs, you must set the element binding.

IN bindings

Set a schema element's incoming data. You bind the element's local input parameters to source workflow attributes. The IN tab lists the element's input parameters in the Local Parameter column. The IN tab lists the workflow attributes to which the local parameter binds in the Source Parameter column. The tab also displays the parameter type and a description of the parameter.

OUT bindings

Change workflow attributes and generate output parameters when an element finishes its run. The OUT tab lists the element's output parameters in the Local Parameter column. The OUT tab lists the workflow attributes to which the local parameter binds in the Source Parameter column. The tab also displays the parameter type and a description of the parameter.

Exception bindings

Link to exception handlers if the element encounters an exception when it runs.

IN bindings read values from the bound source parameter. OUT bindings write values into the bound source parameter.

You must use IN bindings to bind every attribute or input parameter you use in a schema element to a workflow attribute. If the element changes the values of the input parameters that it receives when it runs, you must bind them to a workflow attribute by using an OUT binding. Binding the element's output parameters to workflow elements lets other elements that follow it in the workflow schema to take those output parameters as their input parameters.

A common mistake when creating workflows is to not bind output parameter values to reflect the changes that the element makes to the workflow attributes.

Important:

When you add an element that requires input and output parameters of a type that you have already defined in the workflow, Orchestrator sets the bindings to these parameters. You must verify that the parameters that Orchestrator binds are correct, in case the workflow defines different parameters of the same type to which the element can bind.