# Non platform supported components

<table><thead><tr><th width="138">Check ID</th><th>COMP_0004</th></tr></thead><tbody><tr><td>Category</td><td>Maintainability</td></tr><tr><td>Summary</td><td>The Mendix Marketplace contains a library of components that can be added to your Mendix app. Some of these components are supported by Mendix ('platform supported'), others are supported by independent software vendors (ISVs), and others are community supported. Care should be used when using non-platform supported components as bugs or security vulnerabilities with these components can be difficult to resolve.</td></tr><tr><td>Options</td><td>The maximum number of non-platform supported components an app may have.</td></tr><tr><td>Pass</td><td>The number of non-platform supported components in use by your app is less than the number configured in this check.</td></tr><tr><td>Fail</td><td>The number of non-platform supported components in use by your app is more than the number configured in this check.</td></tr></tbody></table>


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