Power Apps: Modern Attachments & Fixes

Key insights

• Modern Attachments control: New Canvas control adds a cleaner, Fluent-style experience with support for Drag-and-drop, file upload/download, file-count and file-size limits, accepted file types, modern styling, and attachment-specific events to simplify file handling in apps.


• Patch support and SharePoint integration: The control emits an Attachments output you can pass directly into Patch to save files to a SharePoint list item without relying on classic form submit patterns.


• Forms and UI patterns: Use the control inside a Modern Form control for standard list forms or place it outside a form to build custom galleries, buttons, and previews for a more tailored user experience.


• Storage models to choose from: Understand the differences between SharePoint list attachments, Dataverse notes (Annotation), and Dataverse File columns—the latter is a single-file column rather than a multi-file attachment list.


• Benefits for makers: The control offers native low-code integration, device-friendly workflows like mobile photo capture, clearer data modeling choices, and the option to extend or replace the UI with PCF-based components.


• Practical limits and cautions: The feature is in preview, so test before production; note historic limits like ~10 MB per file for classic uploads and that single-file Dataverse columns do not replace multi-file attachments.

Keywords

Power Apps modern attachments, Microsoft Power Apps attachments update, SharePoint attachments patch, Power Apps forms attachments, Power Platform attachment control, Power Apps multi-file attachments, SharePoint form attachments integration, Power Apps attachment feature 2026