IBM BPM, V8.0.1, All platforms > Get started with IBM BPM > Key concepts > BPEL processes and human tasks > Human tasks overview > Task instances > Modification of task instance properties at run time
Replacement variables in human tasks
Replacement variables are used in the definitions of human tasks to refer to a value of an element that is resolved at run time. These variables represent task and process-related data, such as people assigned to a task or custom properties for the task. This data is available at run time for all or part of the lifecycle of a task instance.
Only certain task elements can contain replacement variables. These task elements are defined for the task template, or for a task model that was created at run time using the Business Process Choreographer APIs. These definitions are inherited by the task instance when it is created. The following task elements can include replacement variables.
- Duration until delete
- Duration until expires
- Duration until overdue
- Escalation custom properties
- Escalation description
- Escalation duration
- Email subject and body for escalation notification emails
- People assignment for administrators
- People assignment for editors
- People assignment for escalation receivers
- People assignment for potential instance creators
- People assignment for potential owners
- People assignment for readers
- People assignment for potential starters
- Task custom properties
- Task inline custom properties
- Task description
- Task priority
- Task type
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