---
sourceDocument: Brazil Strategic Portfolio Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-business-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Strategic Portfolio Management

ft:clusterId :

    - itbm

bundleId :

    - itbm

workflow :

    - Technology


---

# Task link types

# Task link types {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Task links define the dependency relationship between tasks. Linking tasks creates dependencies that affect task start and finish dates and determine the critical path. The following table describes the four supported link
types.
{#task-link-types-project-management__table_hss_jzh_q3c__entry__3}

| Link type | Abbreviation | Description |
|-|-|-|
| Finish-to-Start | FS | Task B cannot start until Task A finishes. |
| Start-to-Start | SS | Task B cannot start until Task A starts. |
| Finish-to-Finish | FF | Task B cannot finish until Task A finishes. |
| Start-to-Finish | SF | Task B cannot finish until Task A starts. |
[Table 1. Types of task links]

{#task-link-types-project-management__table_hss_jzh_q3c}
**Related concepts**   

* [Project scheduling in Project Management](https://www.servicenow.com/docs/jLG4dhvV_0j92NSEIGi7tw "Define how tasks are sequenced, timed, and connected to determine when a project starts and finishes with Project scheduling.")  
**Related tasks**   

* [Schedule a project from a start date](https://www.servicenow.com/docs/UnHtlUfhLTgPR1L~UMJTaA "Schedule a project from a start date and plan tasks and milestones based on your project requirements.")