Power Platform Community Forum Thread Details

Need confirmation on file size limits for Power Apps, SharePoint, and Dataverse

Hi everyone,
I’m reviewing the file upload limitations for
Power Apps (SharePoint integrated forms), SharePoint List attachments, and Dataverse File columns.

I created the comparison table below and would like to confirm whether these values are correct.

##Comparison Table

Item	Power Apps Form (SharePoint integrated – Attachments control)	SharePoint List (Attachment column)	Dataverse (File column)
Max file size per file (default)	10 MB (default MaxAttachmentSize)	250 MB per file (SharePoint attachment limit)	32 MB (MaxSizeInKB default 32768 KB)
Max file size per file (expandable)	Can be increased via MaxAttachmentSize, but no official maximum documented	Not expandable (250 MB is the service limit)	MaxSizeInKB can be increased up to 10 GB per file, but upload requests are limited to 128 MB per request
Max number of files (default)	MaxAttachments default behavior is around 6 files (not officially documented)	No officially published limit; practically depends on item size and site storage	1 file per column (File column stores a single file)
Max number of files (expandable)	Can increase MaxAttachments, but no official maximum documented	No official limit; practically constrained by item size and site storage	Multiple files not supported in a single File column; requires related table or Notes attachments
Max total size for multiple files (default)	No official total-size limit; depends on Power Apps per-file limit + SharePoint backend limits	No official total-size limit; each file up to 250 MB, constrained by item size	1 file only → total = 32 MB
Max total size for multiple files (expandable)	Determined by MaxAttachmentSize × MaxAttachments; no official total limit	Same as above; no official total limit	1 file only → up to 10 GB; multiple files require related table design

##My Questions

Are the values in the table above correct according to Microsoft’s official specifications?
For Power Apps:
- Is there an official maximum value for MaxAttachmentSize or MaxAttachments?
For SharePoint Lists:
- Is there any hidden or practical limit on the number of attachments per item?
For Dataverse:
- Is the 10 GB maximum file size still accurate for File columns?
- Are there any official limits on the number of related records when using a separate table to store multiple files?

Any clarification or official references would be greatly appreciated.
Thank you in advance for your help.!

Your Power Apps values are mostly correct but no official max exists for MaxAttachmentSize or MaxAttachments.
Your SharePoint values are correct 250 MB per file, no numerical limit on count, total ≤ 250 MB.
Dataverse “10 GB per file” is not officially confirmed. Microsoft has never published this number.
The only official numeric limits are: 32 MB default for File columns , 128 MB max for Notes/attachments, this assumption seems based on older previews

some references as below:

https://learn.microsoft.com/en-us/power-apps/maker/canvas-apps/controls/control-attachments

Maximum attachment and upload sizes for lists and libraries – SharePoint Online - SP Hammad

SharePoint Online List - what's the limit of number and size of attachments - Microsoft Q&A

How to Create Dataverse File Field [With Examples]

KA-24584

Use file column data (Microsoft Dataverse) - Power Apps | Microsoft Learn

Thanks,
Manoj
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