Adding a Grab Activity

When you add a Grab activity, you should take into account the following considerations.

After you add a Grab you need to select a Grab type. The Grab type defines the transitions that the Grab activity allows.

Roles

You must add Grab activities within a role lane in the process. When you try to add a grab activity outside a role lane, Studio prompts you for an already existing role or allows you to create a new one.

The role lane where you add the Grab activity determines which users can access it. Only the users assigned to that role can run the Grab activity.

Variables

The task associated to the Interactive activity can access the following types of variables:

predefined variables
instance variables
arguments
local variables

Transitions

Defined Grab: You must add inbound and and outbound transitions to indicate from which flow objects you can grab the instance and to which flow objects you can redirect it.

If a Defined Grab activity has transitions to or from flow objects in a Split-Join circuit, then it cannot have transitions to or from flow objects outside the Split-Join circuit. Similarly, a Grab activity with transitions to or from flow objects outside a Split-Join circuit cannot have transitions to or from flow objects located in a Split-Join circuit.
Grab From All: The Grab From All activity can grab instances from any flow object in the process. You cannot add an inbound transition to a Grab From All Activity because it implicitly has inbound transitions from all the flow objects in the process. You must add outbound transitions to indicate to which flow objects you can redirect the grabbed instance.
Grab From All/To All: The Grab From All/To All activity implicitly has an inbound and an outbound transition to all the flow objects in the process. Thus you cannot add any transitions to this type of Grab activity.