Slack vs. Teams for Agency Client Communications

Keeping up with your agency client communications is essential. When considering which communications platform is better, Slack or Microsoft Teams, here are some factors to keep in mind as you choose a preferable option.

March 13, 2026

How Does Slack Work with Client Communications?

Slack is a useful communications tool for both internal and external agency communications. When used for agency client communications, Slack works to connect channels, have real-time communications, and stay up-to-date with projects between the agency and the client. If your agency already uses Slack for internal communications, you may want to keep all correspondence on the same platform. In addition, Slack is easy to use, even for those who are learning how to use this communications platform for the first time.

How Does Microsoft Teams Work with Client Communications?

If you’re considering Microsoft Teams for agency client communications, this platform makes it easy to correspond with individuals who use Microsoft 365 and integrates well with all programs of this technology suite. For example, you can easily share Word and Excel documents with agency clients and you both have access to these vital Microsoft 365 documents. Microsoft Teams is also a beneficial platform for legal and health industry clients where strict data is necessary. However, Microsoft Teams may be more intensive to learn than Slack, the latter of which prides itself on its user-friendly attributes.

Which Communications Platform is Best?

When deciding between Slack and Microsoft Teams, there are some categories you can focus on to determine which one might be more beneficial for your agency and its client communications. Here are some main factors to consider:

Communication frequency: If you communicate often with your clients and want to do so in real-time, Slack may be a faster option and easier to use on a frequent basis than Microsoft Teams.

Compatibility with other programs: For those looking to use their communications platform alongside other programs, Microsoft Teams may have access to more programs, specifically regarding its relationship to other Microsoft 365 programs, such as Word, Excel, and SharePoint.

Most integration capabilities: Slack is known for its integration capabilities and add-on features. For example, the Chronicle app is an excellent tool to use alongside Slack in order to keep inactive channels at a minimum, events and messages monitored, and channels organized.

Guest users allowed: If guest users are frequent additions to your client communications, Microsoft Teams enables secure guest access.

Type of industry: All types of industries can use both Slack and Microsoft Teams; however, if you operate within the legal or healthcare industry, you might find that Microsoft Teams is more suitable for your communication needs and data access.

Costs: The costs associated with both Slack and Microsoft Teams should be considered. The price depends on the plan you choose and how many users are on the account; however, Microsoft Teams appears to be slightly less expensive than Slack.

Choosing the communications platform to work with your agency clients depends on your individual business needs. It’s best to review both options and see whether Slack or Microsoft Teams will work best for your agency.

Organize Slack Communications with the Chronicle App

If you choose Slack as your go-to communications platform, the Chronicle app can help you stay organized with both internal and external communications. The Chronicle app enables you to locate and remove inactive channels, monitor events and messages, and use an intuitive dashboard to do all of this and more.

Find out more about the Chronicle app and how it can help your business stay organized by exploring the Chronicle website today!