# Forced to Use Slack & Teams? The Hidden Cost of Platform Switching at Work Understand what workplace platform switching is, why it happens, and why it matters for teams using both Slack and Microsoft Teams > Forced to use Slack and Teams? Learn why platform switching happens, what it costs your teams, and how companies reduce it. Canonical HTML page: https://conclude.io/blog/forced-to-use-slack-and-teams/ Categories: Productivity Authors: Sian Bennett, Conclude Team Published: 2026-09-29 Last updated: 2026-09-29 --- Many employees are now forced to use Slack and Teams as part of their day-to-day operations. A colleague sends an update in Slack. A customer replies in Teams. A project partner uses one platform, while another team works exclusively in the other. Before long, you're checking two sets of notifications, searching two conversation histories, and trying to remember where a decision was made. This is becoming increasingly common. [According to a survey of 200+ IT managers and admins](https://www.m.io/mio-workplace-messaging-report), **91% of organizations use at least two messaging apps internally**, meaning many employees are already working across multiple communication tools every day. In the same survey, 66% of companies using Microsoft Teams said they were also Slack customers. Most organizations don't deliberately choose this setup. It usually develops over time through mergers and acquisitions, department-level technology decisions, client requirements, or the gradual adoption of additional collaboration tools. As conversations, updates, and decisions become spread across Slack and Teams, employees have to move between platforms simply to stay aligned with colleagues, partners, and clients. This is a specific workplace challenge known as **platform switching**: the need to perform the same communication tasks across multiple, disconnected messaging platforms. It's not about using more tools, but about repeating the same work because information is split across different systems. In this article, we'll explain what platform switching is, why organizations end up running Slack and Microsoft Teams together, the operational challenges it creates, and the different ways companies reduce it. ## What Is Platform Switching in the Workplace? **Platform switching refers to moving between different software platforms to complete related work.** Instead of working within a single system, employees have to switch between multiple tools to complete the same task, creating unnecessary friction in their day-to-day workflows. Platform switching can occur across many workplace tools, from project management systems to file storage platforms and internal dashboards. However, it is most noticeable in Slack and Teams communication, where speed, continuity, and shared context are critical. Organizations running both platforms often require employees to switch systems depending on who they're communicating with. They're managing multiple notification streams, searching separate conversation histories, and trying to keep discussions aligned across platforms that don't share information. Over time, teams experience duplicated effort, missed updates, and fragmented communication. ## Why So Many Companies End Up Running Two Chat Platforms Most organizations don't set out to run two chat platforms. In most cases, chat tools like Slack and Microsoft Teams end up coexisting naturally as organizations evolve, adopt new tools, and expand how they collaborate. Some of the most common scenarios include: **Mergers and acquisitions** – when two companies merge, each brings its existing communication platform. Both platforms often remain in place while integration decisions are made. This can leave teams working across different platforms for months or even years. [Read more about the communication challenges during mergers and acquisitions.](https://conclude.io/blog/mergers-acquisitions-integration-challenges/) **Department autonomy** – different teams often choose tools that best support their workflows. Engineering or DevOps teams may rely on Slack, while other departments use Microsoft Teams as part of a broader Microsoft environment. **Client and partner requirements** – external collaboration often requires adopting the tools your clients or partners already use. Internal teams continue using their preferred platform while also participating in conversations elsewhere. **Shadow IT and informal adoption** – communication tools are frequently introduced outside of centralized IT decisions. Teams may adopt Slack or Teams independently to solve immediate needs, creating another source of fragmentation through [shadow messaging](https://conclude.io/blog/shadow-messaging/). ## The Real Cost of Platform Switching Running two messaging platforms doesn't just mean having two places to send messages. Over time, it changes how information is shared, found, and acted on across an organization. The consequences aren't always obvious at first, but they gradually slow communication, reduce consistency, and make it harder to manage. ### Messages and Context Get Lost **Slack and Microsoft Teams operate as separate systems, each with its own search, history, and file storage. There is no unified way to search across both platforms.** That makes it much harder to find important information quickly. If a conversation happened in Slack, it won't appear in Teams, and vice versa – you must rely on your memory to find the source. As discussions continue across both platforms, decisions become even more scattered, files are stored in different places, and important context is spread across multiple threads. [One technology leader shared on LinkedIn](https://www.linkedin.com/posts/jacknork_we-switched-from-slack-to-teams-to-save-money-share-7438562183002836992-dPsf/) that, in his experience, messages became much harder to find after his company switched from Slack to Teams, as well as the ensuing friction that came from the switch. ### Shadow Messaging and Silos Platform switching can lead to two very different outcomes. At one extreme, employees start duplicating messages across Slack and Microsoft Teams to make sure everyone sees the same information. This is called [**shadow messaging**](https://conclude.io/blog/shadow-messaging/), where the same conversation exists in multiple places and gradually falls out of sync. At the other extreme, information never reaches the people who need it. Conversations, decisions, and files remain trapped within a single platform, creating communication silos that limit visibility across teams. [Learn more about how to break down silos at work using the collaboration maturity model.](https://conclude.io/blog/break-down-silos/) Whether information is duplicated or isolated, the outcome is the same: employees can no longer rely on a single source of truth. Collaboration slows, context is harder to maintain, and teams spend more time piecing together the full picture. ### Employees Feel the Friction Platform switching isn't just an operational challenge. Employees experience it every day. Instead of focusing on the work itself, they spend time checking multiple platforms, repeating searches, and trying to confirm they've seen every relevant message. Before replying or making a decision, they may feel they need to check the other platform "just in case" something was shared there instead. Over time, this creates frustration, uncertainty, and communication fatigue. Even simple tasks take longer because information is fragmented across systems rather than available in one place. ## How Platform Switching Is Different From Context Switching Platform switching is often confused with context switching. The two are related, but they describe different types of friction in the workplace. **Context switching** refers to moving between different types of tasks, such as writing a document, replying to messages, or joining a meeting. Each shift requires a mental reset, which adds cognitive load. This is a natural part of modern work, where responsibilities span multiple activities. For a deeper exploration, [read our article on context switching.](https://conclude.io/blog/context-switching-is-killing-your-productivity/) **Platform switching**, on the other hand, happens when the task stays the same, but the system changes. Instead of switching from writing to messaging, the employee is still checking messages, confirming updates, or finding information, but has to repeat that process across Slack and Microsoft Teams. **The distinction is simple: context switching introduces new cognitive effort, while platform switching duplicates the same effort across disconnected platforms.** | **Context Switching** | **Platform Switching** | | --- | --- | | Different tasks | Same task | | Cognitive shift | Operational duplication | | Usually unavoidable | Often reducible | | Mental effort | Information fragmentation | You can't eliminate every instance of context switching. Modern work naturally involves different types of tasks. Platform switching is different because it's a structural challenge, not a behavioral one. When communication is divided between Slack and Microsoft Teams, employees repeat the same work simply because the platforms don't share context. For another perspective on how this affects collaboration, see our [Slack and Teams Productivity Framework.](https://conclude.io/blog/slack-and-teams-productivity/) ## How Companies Typically Reduce Platform Switching Organizations that run both Slack and Microsoft Teams generally take one of two approaches to reduce platform switching: 1. **Migration** – The company standardizes on a single communication platform and gradually moves teams, data, and workflows into that system 2. **Integration** – Both platforms continue to operate, but are connected so conversations, updates, and collaboration can happen across systems without requiring employees to switch between them Both approaches aim to reduce platform switching, but the right choice depends on factors such as organizational structure, existing workflows, compliance requirements, and external collaboration needs. If you're deciding between these approaches, [our guide to Slack and Teams migration vs integration](https://conclude.io/blog/slack-teams-migration-vs-integration/) explores the advantages, limitations, and typical use cases for each. ## Rethinking How Slack and Teams Work Together Using Slack and Teams together isn't the problem. The challenge is what happens when communication is divided between them. As conversations, decisions, and information become split across platforms, employees spend more time searching for context, repeating work, and trying to stay aligned. If your teams are forced to use Slack and Teams, reducing platform switching isn't necessarily about replacing one platform with another. Some organizations choose to standardize on a single communication platform, while others look for ways to keep both while improving how they work together. [Conclude Connect](https://conclude.io/product/connect/) links Slack and Microsoft Teams so communication can move between platforms, supporting unified workplace communication without requiring teams to change the tools or workflows they already rely on.
Forced to use Slack and Teams
To see how this works in practice, read our guide on [how to connect Slack and Microsoft Teams.](https://conclude.io/blog/connect-slack-microsoft-teams/) ## Frequently Asked Questions **Why are employees forced to use Slack and Teams together?** Employees are often required to use both Slack and Microsoft Teams because organizations operate across multiple environments. This typically happens after mergers and acquisitions, through department-level tool choices, or collaboration with clients and partners who use different platforms. As a result, employees need to communicate across both systems to stay aligned. **What are the biggest problems with using Slack and Teams together?** The main challenge comes from fragmented communication. Conversations, decisions, and files are spread between Slack and Microsoft Teams, making information harder to find and increasing the risk of duplicated conversations, communication silos, and inconsistent visibility. **Why do messages get lost between Slack and Teams?** Messages get lost because Slack and Microsoft Teams operate as separate systems. They do not share a unified search, conversation history, or file storage. If a message is posted in one platform, it isn't visible in the other, which makes it harder to track discussions, decisions, and find shared files. **How common is it for companies to run multiple messaging apps at work?** Running multiple messaging platforms is very common. According to [Mio's Workplace Messaging Report](https://www.m.io/mio-workplace-messaging-report), 91% of organizations use at least two messaging apps internally, making multiple messaging apps at work the norm for many employees. This often happens as organizations grow, adopt new technologies, merge with other businesses, or need to collaborate with external teams that use different communication platforms. **Is running two chat platforms different from general multitasking or task switching?** Yes. Multitasking or task switching involves moving between different types of work, such as writing, meeting, or replying to messages. Running two chat platforms involves repeating the same task, like checking messages or searching for information, across separate systems. Rather than changing tasks, you repeat the same work in different platforms – this is an example of platform switching. **What can companies do if they're stuck using Slack and Teams together?** Companies typically take one of two approaches. They can migrate to a single platform, consolidating communication into one system, or they can connect Slack and Microsoft Teams so conversations and updates can flow between them. The right approach depends on how teams work and how communication is structured across the organization.