-
Learn the Basics
-
- Spaces
- Space Types
- Creating Spaces
- Adding Users to Spaces
- Space Activity Stream
- Following Spaces
- Space Details
- Space Dates
- General Space Settings
- Duplicating Spaces
- Renaming Spaces
- Changing the Space Color and Icon
- Leaving Spaces
- Removing Users from Spaces
- Moving Spaces between Workspaces
- Moving Spaces between Different KanBo Environments
- Closing and Reopening Spaces
- Deleting Spaces
-
Visualize Work
-
Collaborate
-
Level Up Your Work
-
Resource Management
-
Work Securely
-
Integrations
-
- KanBo and Microsoft Teams Integration
- Notifying KanBo Users in Microsoft Teams
- Opening KanBo through Microsoft Teams
- Sharing Microsoft Teams Messages and Posts as Notes in Cards
- Adding KanBo Elements as Tabs in Channels
- Integrating Workspaces with Microsoft Teams
- Integrating Spaces with Microsoft Teams
- KanBo Link Unfurling
-
- Exporting Space Views to Excel
- Visitors in Microsoft 365 Environments
- KanBo Autodesk BIM Integration
- KanBo and ServiceNow Integration
- KanBo and Zapier Integration
- Nintex Integration
- Seamless Import from Microsoft Planner to KanBo
- Creating Document Folders in Document Libraries Created by KanBo with Power Automate
- Creating KanBo Space Attached to Subfolder Created by Power Automate
- Advanced KanBo Actions in Power Automate
- Adding KanBo Modern Webpart to Your SharePoint Site
- KanBo and Azure Logic Apps Integration
- KanBo and Ui Path Integration: Usage
- Power Automate Integration: Triggers and Actions
-
Card Blockers
This post is also available in: Deutsch
In this article:
Overview
A card blocker allows you to block cards for a specific reason. It informs about the problem with completing the task. Create multiple card blockers to make the standstill reasons explicit and to categorize your problematic work.

Example: A red icon with an exclamation mark indicates that the card is blocked.
A blocked card has an explanation in the card details section. Here you can see who blocked the card, when, and with what type of blocker.

Example: The card is blocked by the Sponsor card blocker. The reason: “Waiting for decision”.
The blocker indicates that as long as the card is blocked, it is impossible to continue working with the card.
You cannot change the card status until the card is blocked.
There are two types of card blockers:
- Local card blocker – created by space owners and used only in a particular space.
- Global card blocker – created in KanBo and more widely available. Can be monitored from a higher level.
The difference between local and global card blockers is quite simple. Global card blocker usage can be supervised from above. If you decide to use a local blocker instead, only space users will know about it.

It is good practice to add descriptions to blockers so that users know how to use them.
My Blockers
If you are responsible for any card blockers, you will see a new icon on your Sidebar. This is the My Blockers section, which has a counter to tell you how many tabs you have blocked.
There is a place for all current card blockers that you are responsible for.

Example: Zachariach is responsible for the photovoltaic card, but he is going on paternity leave, so the card will be blocked for that time.
*Users with the Professional KanBo license can see their card blockers but cannot manage them.
Blocking cards
Every card user can block a card with the available card blockers.
To block a card:
- Open the card.
- On the card top bar select More (the three-dot menu), and then select
Block.
- Select blocker, and optionally fill in the fields Reason and Responsible, and then select Save.

Unblocking cards
Every card user can unblock a card.
To unblock the card:
- Open the card.
- On card details, select the blocker info section, and then select
Unblock.
- You can optionally leave a comment, and then select Unblock.

FAQ
How to show that a card has been put on hold for some reason?
Use card blockers. It allows you to block a card and informs you about the problem with the completion of the task.
Who can create local card blockers?
Only space owners can create local card blockers in spaces. They can also add on-demand blockers to the space by selecting them from global card blockers.
What is the difference between a local blocker and a global blocker?
A local blocker is only created and used within a space, while a global blocker is available in every space in KanBo.
Who can manage global card blockers?
You need the Global Settings role to manage global card blockers. Global card blockers can be edited, removed, or created in the KanBo Settings.
Was this article helpful?
Please, contact us if you have any additional questions.