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JSU for Jira Cloud

This is the documentation of JSU for Jira Cloud. If you are using JSU on Jira Server or on Jira Data Center, you can find the documentation here.


This post function will trigger a transition on a related issue. It can be very powerful in conjunction with the Create a Linked Issue post function to 'connect' the workflows of 2 issues.

You can also specify any number of fields, that will be copied to the related issue.



There are several ways in which preconditions can be evaluated in the context of a post function:
  • True (Precondition must be true to execute a post function)
  • False (Precondition must be false to execute a post function)

You can find more generic description of precondition here

Trigger transition on all issues related as

You have several different options, on which related issue the transition will be triggered.

Several of JSU's workflow modules provide the option the define the scope of the module on some related issues.

For example instead of copying a field within an issue during a post function, you might choose to copy it to a sub-task.

Types of Issue Relations

Related issue will be found by one of the following Jira concepts:

  • Issue Link
    You can define the link type to define which issues exactly will be affected by the operation.
    If link type is  ANY, the operation will be performed on any linked issues.
  • Parent / Sub-Task
    The related issue is either parent or sub-task of each other.
  • Epic / Issue in Epic
    This is only applicable, if you have Jira Software installed.
    The other issue is either the epic related by an epic link, or it is part of an epic.
  • JQL
    A JQL query will be executed to find the issues, which will be affected by the post function. You can use some placeholders in the JQL query, which will be replaced with current field values of the issue in transition. For writing the JQL query please follow the instructions on JQL Reference .
    Also see our JQL Use Cases for some examples.

Issue in Transition

We use the term 'Issue in Transition' when we refer to the issue for which a workflow condition is checked, for which a workflow validator is examined, or for which a workflow post function is performed.

Or in other words that issue, which triggered a workflow condition / validator / post function to be executed.

Source and Destination

For example the Copy Value From Other Field Post-Function allows you to define the issue in transition as the source or destination of the copy operations, while you define the other end with an issue relation.
The field value will then be read from the source issue and be written to the destination issue.

Other workflow modules do not have source and destination. So you just define the issue relation, which will apply for that workflow module.
For example Create a Linked Issue Post-Function will just create a new issue and then connect it with some Issue Relation to the issue in transition.


Please use some common sense what can and what cannot work.

Some examples:

  • Copy Value From Other Field Post-Function there should be only 1 source issue. Otherwise it is not clear from which the value will be read. (The current implementation will just pick one of them and ignore the rest. Which one is not defined - sort of random.)
  • If you use Create a Linked Issue Post-Function to create a new sub-task, you must also configure this post function to create the new issue as an issue type of a sub-task and make sure the target project is the same as the one of the issue in transition.

We try to perform whatever is possible. In case of problems, the workflow module will still run through, but write a message into the log file. See Troubleshooting how to turn on the full logging for JSU. It might be a good idea to do this while you test any new workflow configuration to make sure you're not missing any thing.


When the post function is performed, it will trigger the transition with that particular id (31 in the example above) on the linked issues. 

When the post function is executed, it will just look if that transition id is available on the target issue. No matter what workflow and transition name you picked in the configuration screen (that is only to make it easier to find a particular transition id during configuration).

If the transition with that id is not available on the linked issue (probably because it is in a different status) nothing will happen. Also no comment or fields are copied, no resolution is set.

It is important to keep this in mind and design your workflows accordingly to prevent them to become sort of 'out of sync'. You might also use several 'Linked Transition' post functions in the same transition, each calling a different target transition, to match possible different statuses of the linked issue.

Also be aware, that there might be some workflow conditions or validators, which could prevent a transition to be performed.

The transition on the linked issue will be performed as the same user, who triggered the transition on the origin issue. If he does not has the necessary permissions, nothing will happen.


It is important to following in mind:

1) To set the resolution, It is necessary to have resolve screen on transition. For more information, Please see

2) If any transition screen contains the resolution field, that field becomes mandatory. Here you have a chance to set a value for the resolution to be able to perform that transition.

Resolution here in the Post Function Configuration

Resolution on the issues at the beginning when the transition is performed

What happens?


(does not matter)

The resolution on the issue won't be changed.

Any value

Any other value

The resolution will be set to the defined value.

All other sibling issues must have one of the following statuses

This allows you, that only 'the last' issue will trigger a linked transition.

Consider the following structure of linked issues from our Linked Transition Post-Function use case:

A test case issue has several linked bugs. The bugs are linked as 'from test' to the test case.

Only when the the last bug is fixed, the test case should be set to the Status 'Ready for Re-Test' (this is the transition 'All bugs fixed (51)' in the above screenshot).
The prevent this transition to be executed already when the first bug is fixed, we configure here two statuses

All other issues linking to the target must have one of the following statuses: Resolved, Closed

(Resolved is not visible in the above screenshot, but actually selected further down in the list of statuses.)

If bug 3 in the above diagram is resolved, nothing will happen, because bug 4 still has another status (than Resolved or Closed). Finally after that, bug 4 is resolved - all bugs now have status Resolved (Closed would also be ok) - now the transition ('All bugs fixed (51)') on the test case is executed to set it to 'Ready for Re-Test'.

Copy Fields

This fields will be copied to the linked issue, after the transition has been performed.
The conditions and validators of your linked transition will still use the old field values.

You can copy the value form some source field to some destination field. Click the + Button to add additional field pairs to your configuration.

Keep in mind that not all conversions from source to destination field are supported, nor feasible. We can only ensure, that it will work if source and destination fields are of the same field type, or the destination field is a text field. (Still, some additional combinations of different field types might work as well - although not 'officially' supported.)

Overwrite / Append / Prepend

For text fields and some field that can take multiple values (like checkboxes) you can choose to overwrite, append or prepend the new value to any existing value. In the case of text field, you can also choose a separator that will be put between the values (not shown in the screen shot above).

Create version if necessary

Imagine your origin issue has a version, that you want to copy to the linked issue.

If the destination field is 'Fix Version/s', 'Affects Version/s' or some custom field of type 'Version Picker', you can choose that a new version will be created in the target project, if does not yet exist. If you don't choose this option and that version does not yet exist, the user will get an error message and the transition will complete.

However be aware, that a user needs the 'Administer Projects' permission to be able to create a new version.

Create component if necessary

Imagine your origin issue has a component, that you want to copy to the linked issue.

If the destination field is 'Components', you can choose that a new component will be created in the target project, if does not yet exist. If you don't choose this option and that component does not yet exist, the user will get an error message and the transition will complete.

However be aware, that a user needs the 'Administer Projects' permission to be able to create a new component.

Special 'Sources'

As source you have some additional options:

  • *** empty ***
    The destination field will be cleared.
  • *** last comment ***
    The last comment from the source issue will be copied.
    In some cases that might be the comment from the transition screen, which the user just entered while performing the current transition.

Special 'Destinations'

As destination you have also special options:

  • *** new comment ***
    A new comment will be created with the copied value. When you choose to 'overwrite' to new comment, a new comment is created, enabling you to add multiple comments in one post function.
    Copy Description to New Comment, overwrite → creates a new comment with the description
    Copy Summary to New Comment, append with separator ", " → appends the summary to the previously created comment, so the comment will look like <Description>, <Summary>
    Copy Assignee to New Comment, overwrite → creates a new comment
    This configuration will result in two comments being created, one with the description and summary, and one with the assignee.

Supported Field Types

In its different modules (especially those for workflows), the JSU app supports many different field types. System fields, as well as custom fields.

However you should be aware, that not all field types or all combinations are supported. We think we cover the most important field types and are still continuously adding and improving which, and how different field types are supported. But the one you need might not work (yet). 

We recommend that you test JSU with fields to see if it is compatible with your system. Our evaluation license gives you 30 days free trial. 

Asynchronous Execution

There is a fundamental difference between Jira Server/Data Center and Jira Cloud: In Jira Cloud post functions of apps are executed asynchronous as a 'background job'.
  • This means a post function will be executed after the transition has completed on Jira Cloud.
  • There is no guaranteed order in which several post functions are performed. They might be executed in a different order from the one you had set them up in Jira's workflow configuration. So you cannot rely on any result of a 'previous' post function. The order by which the post functions are executed might be different every time the transition is performed.
  • When a post function has a problem (due to misconfiguration or the current data of a Jira issue), the transition (and all other post functions) will be performed nevertheless.
  • The result of a post function might not be visible immediately in the browser.
  • There are no error messages displayed to the user.


See the Use Case Testing and Fixing Bugs for a nice example, how several of our customers use it.


For general troubleshooting about JSU see Linked Transition .

If a linked transition does not get triggered, or it even block your origin transition, these are a few things to check:

  • Did you check the log files. There are cases, when the linked transition is not performed silently. But you will find a message in the log files on the server. You might increase to logging level (as described in Linked Transition).
  • What happens when you manually click the linked transition. Does it work, or might there be a problem?
  • Does this problem only happen by another user? Check that the user performing  origin transition, also has enough permissions for the linked transition.
  • Is there a transition screen for the linked transition? Is there any condition, validator or post function on the linked transition? Could these prevent the transition to be performed in an automatised way (with the 'Linked Transition' post function)?
  • In the order of all post functions of the orign transition, the 'Linked Transition' post function must be the last one.
  • Did you try to set a particular Resolution in the linked transition. Or with 'Resolution=empty' - does it then work?
  • Did you check already the documentation above? You might find antoher hint what to look for.

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