When a Oracle SOA or BPM workflow task is assigned to a role and/or group, a user may acquire the task to work on it. Once the task is acquired, other users are not able to work on that specific task. In the Oracle SOA-INFRA, used by both SOA Suite and BPM Suite, there is a feature called ‘task auto release’ which allows to configure the duration before tasks are automatically released and made available for all other users again.
In Enterprise Manager go to soa-infra -> SOA Administration -> Workflow Properties
Select the Task tab and expand Advanced. There you can see there are default values for automatically releasing tasks according to their priority. In the screenshot below the default value of P3D (3 Days) is changed to P1TM (1 minute) for testing purposes. This is done for the priority 3 task, which is the default priority. Read the complete article here.
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