Pega pre and post processing in flow actions

What is flow action in pega?

A flow action is a rule, which controls the user interaction with a work object to complete an assignment. It is an instance of the Rule-Obj-FlowAction rule type.

Types of Flow actions in pega

  1. Local Flow action
  2. Connector Flow action

Local flow action:

Local flow actions are optional and can not advance the work object to the next shape. We can have one or more local flow actions and can perform one or more flow action. For example: attach a note, attach a screenshot.

Connector flow action:

Connector flow action advances the work object after finishing the assignment. The user will be presented with one connector flow action based on the likelihood when a user opens an assignment.

What is a likelihood in pega?

The likelihood is a value between 1-100 which we need to give for each flow action to determine pega to display the flow action when we open an assignment. If we have multiple flow actions that are coming from an assignment shape, pega will display the flow action which is having the highest likelihood value.

Pre and post-processing in flow actions

If we want to initiate some values or set some properties or copy data from one property to another, we can add pre and post-processing actions to a flow action in the Actions tab.
flow action pre and post processing
Preprocessing:
When a flow action is configured with a data transform or an activity in the pre-processing section, Pega performs the action whenever a user selects the flow action as well as each time the user is presented with the assignment. 
flow action pre and post processing

Post-processing:

When a flow action is configured with a data transform or an activity in the post-processing section, Pega performs the action each time you perform the action, which means each time when you click on submit (or perform any action buttons).



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