What to Check Before You Install a SharePoint App

Before you install a SharePoint app, check four things: whether it uses your existing SharePoint permissions, where your business data is stored, how upgrades are delivered, and whether it will still work after a tenant migration. Feature lists rarely answer any of these. An out of the box SharePoint solution built natively on Microsoft 365 keeps data, governance, and sign-on inside the environment you already run, which is what protects the investment three years after go-live.

The Microsoft Sharepoint logo on a green background

Feature Lists Answer the Wrong Question

When teams compare the best SharePoint apps, the shortlist usually comes down to screenshots and feature counts. Those matter on day one. What decides whether the app is still delivering value in year three is how it sits inside your Microsoft 365 environment.
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A SharePoint app should extend the platform you already pay for. Four questions separate the apps that do that from the ones that quietly build a second system alongside it.

Does the App Use Your SharePoint Permissions?

Permissions are one of the strongest reasons to build business applications on SharePoint. Your teams already rely on Microsoft 365 security groups, role-based access, and permission inheritance to control who sees and edits what.
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An app should work inside those permissions instead of layering its own security model on top. SP Marketplace applications run natively inside SharePoint, so sign-on and governance run through your existing directory rather than a separate user list that someone has to maintain and audit.

Where Does Your Data Live?

This is the question that separates Platform as a Service from Software as a Service, and it is worth asking early.

SaaS applications move your information onto a vendor cloud. You get the software, the vendor holds the data.

aaS applications run on infrastructure you already own. With SP Marketplace, the documents, the data, and the product itself all reside on your own Microsoft 365 tenant rather than a third-party cloud.

Nothing leaves the environment your compliance team already signed off on.
For organizations working under HIPAA, CMMC, or state records requirements, knowing where information sits carries as much weight as any feature comparison.
 

How Are Updates and Upgrades Delivered?

Business applications change over time, and so does Microsoft 365. Ask how the app handles both.
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No-code, configurable applications avoid the rebuild cycle that catches custom SharePoint application development projects. SP Marketplace modules are fully customizable by power business users, so most changes happen in-house without paying a consultant for every adjustment. The applications also evolve alongside the Microsoft 365 platform, picking up new Microsoft capabilities as they are released rather than falling further behind with each Microsoft update.

Will the App Survive Tenant Changes?

Microsoft 365 environments rarely stay still. Organizations merge, restructure, migrate tenants, or rebuild their SharePoint architecture.
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Applications built on standard SharePoint components, Power Automate, and Power BI move with the tenant because they are made of the same parts as the rest of your environment. Systems that depend on external infrastructure and their own databases turn a migration into a separate project with its own budget.

A Buyer Checklist

Before you install any SharePoint application, work through these five questions:

1. Does it use native SharePoint permissions, or does it bring its own security model?
2. Do the data, documents, and the application itself stay on your Microsoft 365 tenant?
3. Can updates be applied without rebuilding your customizations?
4. Will it move with you through a tenant migration or restructure?
5. Does it remove a standalone subscription rather than adding to the stack?

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Five yes answers usually point to an application that keeps earning its place after the initial deployment.

Choose Office 365 Apps for Business That Fit the Platform

​SharePoint customization has a reputation for being expensive because so much of it has been custom development wearing a different name. Configurable no-code applications avoid that trap. By choosing office 365 apps for business that are built natively on SharePoint, Teams, and the Power Platform, organizations improve how work gets done while keeping the governance, security, and control that made Microsoft 365 the platform of record in the first place.