--- title: "Follow Up Transition post function" canonical: "https://support.appfire.com/space/JSUCLOUD/12518817/Follow%20Up%20Transition%20post%20function" format: markdown --- > Macro (aura-html) ## Description The Follow Up Transition post function evaluates the [workflow conditions](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518591) of all subsequent transitions based on the target status of the current transition, including global transitions. If exactly one transition is possible, that transition will be triggered as a follow-up. If more than one transition is possible, JSU cannot determine which to use as the follow-up transition. To learn more about global transitions in Jira workflows, see Atlassian’s [https://support.atlassian.com/jira-cloud-administration/docs/configure-advanced-issue-workflows/#Global-transitions](https://support.atlassian.com/jira-cloud-administration/docs/configure-advanced-issue-workflows/#Global-transitions). > ℹ️ See [Workflow post functions](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518401) to learn how to add a JSU post function to a Jira workflow. ## Configuration The Follow Up Transition post function has no additional parameters to configure; however, you must have at least one workflow condition configured. ## Use case ![An example Jira workflow that includes a junction status that leads to three different follow-up transitions depending on the condition that is met.](media://a8b752e2-380d-46e2-b93c-268f15a714ae) - Our issue has a mandatory number custom field. - At the end of the *Go* transition, we have configured a Follow Up Transition post function. - Each transition leading away from the status [junction] has a workflow condition: - *Under Five* has the condition: Number field < 5? - *Exactly Five* has the condition: Number field == 5? - *Over Five* has the condition: Number field > 5? - When a user performs the *Go* transition, this will always trigger a follow-up transition. For example, if a user enters Number=3 during the Go transition, this leads to the [in progress] status. If they enter 42, this leads to [closed]. We configured our workflow conditions so that only ever one condition can be true. This way, the user will never be stuck at the [junction] status. ## Conditions Use conditions to ensure that only one transition is possible for the follow-up transition. Let's continue the example from above, where a number field is evaluated. We will configure three conditions: one for each outgoing transition from the [junction] status. #### Under Five ![The Under Five condition.](media://8dcbaa10-c366-44f0-9332-f9f44d562fe9) #### Exactly Five ![The Exactly Five condition.](media://df472d58-bdbe-42f1-8cd1-f5dc16a0a02f) #### Over Five ![The Over Five condition.](media://9360b367-a49e-4be8-ad67-4207d5cd91eb) #### Simple *Yes / No* example A simpler use case occurs when there are only two transitions leading from a status, and you evaluate the same condition, with one condition being negated. - a == b? You can use Jira’s Value Field condition for this setup. ![Example Jira workflow with a junction status with only one condition that determines the follow up transition.](media://83e855ca-0957-4bb5-9669-d7d61c2009ea) - Check it: Follow Up Transition post function. - Yes: Condition a == b? - No: Condition a != b? #### Fast forward example Some extra steps in your workflow might only be necessary if a specific condition is not met. Otherwise, that step could be skipped. ![Example Jira workflow that uses a condition to bypass a step.](media://c8e91a0f-1bf0-4c64-8a76-5701fd32f48f) #### Management approval See the [Streamline an approval process](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518631) use case for another example. > 📝 You can learn more about workflow conditions in Atlassian’s [Configure Advanced Issue Workflows](https://support.atlassian.com/jira-cloud-administration/docs/configure-advanced-issue-workflows/#Validators) article. ## Troubleshooting **Problem**: Workflow is blocked at the Junction status **Cause**: Not exactly one condition Usually, the problem can be tracked down by reviewing the expected outcome of the post function; if exactly one condition is valid, the corresponding transition will be triggered. > ℹ️ It's important to do your analysis with the same user who encountered the problem. There might be issues with permissions that could lead to a different result, depending on the user performing the transition. Consider an issue blocked at the Junction status: How many transition buttons does it have? If you have none or more than one transition, review your workflow conditions on the transitions leading out from the [JUNCTION] status. If there is only one button, there might be something wrong with that transition. For example, a validator could prevent the transition from being completed. **Cause**: Triggered transition fails Another reason might be that the triggered transition does not run. For example, if it has a validator that fails. ### Infinite Loop Detection An infinite loop can occur when executing the Follow Up Transition post function. An infinite loop results in an endless cycle of issue creation and follow-up transitions following the triggering of the origin issue. When a loop is detected, JSU will stop the execution and log an execution failure. When using post functions that create issues or follow-up transitions, consider the outcome of the rule and the user permissions of your project teams. You can also use [preconditions](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518025) to restrict when rules are run to reduce the likelihood of causing an infinite loop. Learn more about how JSU identifies an infinite loop in [https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/256770940](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/256770940) . ## Related pages - [https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518631](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518631) - [https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/256770940](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/256770940) - [https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518591](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518591)