Skip to main content

Defining Relationships and Lags

How to add FS, SS and FF relationships and lags

Updated over a week ago

Types of Relationships in Planera

In Planera, relationships play a crucial role in defining connections between different activities. There are three types of relationships supported:

  • FS - Finish to Start

  • SS - Start to Start

  • FF - Finish to Finish

By default, when you add a connector between two activities, it shows a FS relationship with "0" lag, meaning the next activity starts as soon as the previous one finishes. You have the flexibility to change it to SS or FF

How to Add/Change Relationships and Lag for a New Activity:


1. For a new connection, the relationship defaults to an FS without any lag. Right click on the connector and go to the relationship context menu

2. From there, you can change the relationship, edit lag, and add other relationships as well

3. Multiple relationships can be added to one connector by toggling the appropriate switches.
Planera displays relationships in an easily readable format

4. If no relationships are added, a pop-up will appear, prompting you to decide whether you want to delete that connection or no

Note: To create a relationship with an existing activity using the "Add Successor/Predecessor" modal, select an activity, drag a connector from it to an empty area, and a modal will appear. Choose the activities to connect from an existing activity, select the relationship type, and click "Add" when you're finished.

Managing Relationships in Different Views

In the table view, right-click on an activity or click the icon below to see and edit its relationships

In the Gantt chart, click on the connector to view the relationship

Select an activity, click the icon at the bottom View/edit relationships, and see predecessor and successor activities

When dealing with groups, view/edit multiple relationships without navigating to individual activities.
Understand connections and relationships between activities and groups

Managing relationships in Planera ensures a clear and efficient project flow, allowing for precise planning and execution

Multiple relationships compatibility note:

Note that while P6 does support multiple relationships between two activities, MS Project does not. So if you export a Planera project with multiple relationships between two activities in MS Project format, MS Project will show them but will only consider the first one it shows in the UI. That is not in our control and is a MS Project limitation.

Did this answer your question?