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Work package relations and hierarchies

You can create work package relations and hierarchies.

Relations indicate any functional or timely relation (e.g. follows or proceeds, blocked by, part of, etc.). Hierarchies are a hierarchical relation (parent-child relationship).

Work packages relationsHow can I set a relation between two work packages and which relations can I set?
Display relations in work package tableHow can I display the relations between two work packages in the work package table?
Work package hierarchiesWhat are work package hierarchies? Learn about parent and children work packages.
Add a child work packageWhat are the possibilities to add children work packages?
Change the parent work packageHow can I change a work package's parent?
Display work package hierarchiesWhere can I find out about a work package's children and parent?

Work package relations

Work package relations indicate that work packages address a similar topic or create status dependencies. To create a relationship between two work packages:

  1. Select a work package, click on Relations to open the relations tab and click the + Create new relations link.
  2. Select the type of relationship from the dropdown menu.
  3. Enter the ID or name of the work package, to which the relation should be created and choose an entry from the dropdown menu. The autocompleter suggests the work package to be added.
  4. Press the Enter key.


You can select one of the following relations:

  • Related to - This option adds a link from the work package A to work package B, so that project members can immediately see the connection, even if the work packages are not members of the same hierarchy.

  • Duplicates / Duplicated by - This option indicates that the work package B duplicates a work package A in one way or another, for example both address the same task. This can be useful if you have the same work package that needs to be a part of a closed and public projects at the same time. The connection in this case is only semantic, the changes you make in work package A will need to be adapted in work package B manually.

    Note: some changes in statuses will de adjusted automatically for the duplicated work package. Specifically, if the status of a work package A is set to be "closed" (or set to any status that is defined to count as "closed" in the system settings, for example "rejected" often counts as a "closed" status), the status of the work package B will change to "closed". Note that this is direction dependent. Only if the work package A is closed will the work package B be closed as well, not the other way around.

  • Blocks / Blocked by - This option defines status change restrictions between two work packages. If you set a work package A to be blocking work package B, the status of work package B cannot be set to closed or resolved until the work package A is closed.

  • Precedes / Follows - Defines a chronological relation between two work packages. For example, if you set a work package A to precede a work package B, the start date of B has to be at least a day after the finish date of A. Please note: If work package B is in manual scheduling mode, changing the finish date of work package A will have no effect on work package B.

  • Includes / Part of - Defines if work package A includes or is part of work package B. This relation type can be used for example when you have a roll-out work package and work packages which should be shown as included without using hierarchical relationships. There is no additional effect.

  • Requires / Required by - Defines if work package A requires or is required by work package B. There is no additional effect.

The selected relation status will be automatically displayed in the work package that you enter. For example if you select "Blocks" in the current work package A and specify work package B, work package B will automatically show that it is "Blocked by" A.

The precedes/follows relation is the only one that can constrain or affect the dates of work packages.

Work packages in a precedes/follows relationship do not need to immediately follow one other; there can be a gap. In this case, you can move either forwards or backwards in time without affecting the other as long as the finish date of the predecessor is before the start date of follower.

A follower cannot be moved to start before the finish date of its predecessor. However, a predecessor can indeed be moved to start or finish after the start date of its follower. When this happens, the follower will be pushed into the future such that it starts the day after the new finish date of the predecessor.

Display relations in a work package table

You can display relations as columns in the work package tables. This is useful if you want to get an overview of certain types of relationships between work packages. You can for example see which work packages are blocking other work packages.

To add relation columns, navigate to the upper right corner of the work package table and click on the icon with the three dots. ... insert columns an type the name of the relation into the search bar. Then select the relation and click on apply.

work package add relation as column

The relations column shows the number of relations each work package has for the relation type (e.g. "blocked by").

You can click on the number to display the work packages which have the relation type.

Relations column

Work package hierarchies

Work packages can be structured hierarchically, e.g. in order to break down a large work package into several smaller tasks. This means that there's a parent work package that has at least one child work package.

Add a child work package

There are three ways to add or create a child work package:

  1. Adding or creating a child in the Relations tab in a work package's details view
  2. Right-clicking on a work package in the work package table and select "Create new child"
  3. Right-clicking on a work package in the work package table and select "Indent hierarchy" to add it as the child of the work package above it.

Add a child in the Relations tab in a work package's details view

Open a work package and select the tab Relations. Click on + Create new child to create a child work package. Alternatively, you can assign an existing child work package with + Add existing child.

User guide hierarchies

Insert the name of the new work package and save the newly created work package by pressing Enter. You can make changes to the work package by clicking on the work package ID.

create work package children

For more information on the work package creation take a look at the guideline on creating a work package.

Change the parent work package

To edit or remove the parent of a work package open the work package. At the top of the details view of the work package you will see the work package hierarchy. Click on the edit icon or delete icon to change the work package parent.

change parent work package

Display work package hierarchies

After adding the parent and child work packages they are listed in the Relations tab. Note that only the children are shown in the relations tab and the parent isn't.

work package relations

Hierarchies can also be displayed from the work package table view. To display work package hierarchies make sure the Subject column is displayed. You can activate or deactivate the hierarchy by pressing the icon next to the Subject.

User guide display hierarchy

You can also add a column with information about parent work packages:

  1. Click on the gear wheel in the upper right corner of the work package table to open the work package table configuration.
  2. Select "Parent" from the drop down menu and click on apply.
  3. Now the column with the information about a parent relation is displayed in the work package table.

select parent as column