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Does Project for the Web Support Start-to-Start Dependencies?

Olivia MillerOlivia Miller Oct 28, 2026 869 views

Question details

The user wants to know if Start-to-Start task dependencies can be used in Microsoft Project for the web.

Can Project for the Web Use Start-to-Start Dependencies?
Product
Microsoft Project for the web
Device & OS
not provided
Scenario
Planning a project schedule where certain tasks need to start simultaneously rather than strictly sequentially.
Observed behavior
Project for the web currently restricts users to Finish-to-Start dependencies, lacking the full range of advanced dependency types available in the desktop version.
Before you start

Before altering your project plan, review your task list to confirm if a Start-to-Start relationship is strictly necessary, or if breaking the tasks down into smaller sequential milestones could temporarily resolve the scheduling gap.

Solution 1Recommended

Switch to Desktop Microsoft Project or Project Online

Use the desktop version of Microsoft Project or Project Online to access advanced scheduling tools and all dependency types.

Since Project for the web is a lightweight version of Microsoft's project management tools, it lacks complex scheduling relationships. If your project heavily relies on Start-to-Start (SS), Finish-to-Finish (FF), or Start-to-Finish (SF) dependencies, you will need to utilize the traditional desktop client or Project Online.

1
Evaluate your licensing

Check if your Microsoft 365 subscription includes Project Plan 3 or Project Plan 5, which grants access to the desktop Microsoft Project application.

2
Open your project in the desktop app

Launch Microsoft Project desktop and import or recreate your task list.

3
Change the dependency type

Double-click a linked task to open the Task Information dialog. Navigate to the 'Predecessors' tab, select the task, and change the 'Type' dropdown from Finish-to-Start (FS) to Start-to-Start (SS).

Switch to Desktop Microsoft Project or Project Online
Data Compatibility: Projects created in Project for the web cannot be seamlessly exported with full two-way sync to the desktop application. You may need to manually migrate complex schedules.
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  1. 1. Download and install: Get WPS Office from the official website and install the lightweight application on your PC or Mac.
  2. 2. Open a project template: Launch WPS Spreadsheet, go to the Homepage, and search for 'Project Schedule' or 'Gantt Chart' in the templates library.
  3. 3. Customize your timeline: Input your task data, adjust start dates flexibly without software restrictions, and save your file in standard Office formats.
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Frequently Asked Questions

What exactly is a Start-to-Start (SS) dependency?

A Start-to-Start dependency is a task relationship where the successor task cannot start until its predecessor task has started. It is commonly used when two tasks need to be executed simultaneously or in parallel.

Will Microsoft add other dependency types to Project for the web?

Microsoft continuously updates Project for the web and may add additional dependency types like SS, FF, or SF in the future. However, there is no official release date, which is why submitting feedback is highly recommended.

Can I use lead or lag times in Project for the web to work around this?

Project for the web currently has limited capabilities regarding lead and lag times compared to the desktop version. While you can adjust task durations, simulating true parallel starts (Start-to-Start) accurately remains difficult without upgrading to Microsoft Project desktop.