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Power Platform Community / Forums / Power Apps / Sudden "Error retrievi...
Power Apps
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Sudden "Error retrieving data from network" with Excel (256 rows) and SharePoint (>5000 items)

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Posted on by 2

Sorry if this reads a little weird, English is not my first language so I used AI to help me structure this clearly.

Since yesterday, I’ve been having two issues in Power Apps that were not happening before:

1. Excel Online (256 Row Limit Error)
Dropdowns and comboboxes connected to Excel Online now fail if the table has more than 256 rows. I get an "Error when trying to retrieve data from the network". In Live Monitor, I see:
"Requested 2000 rows. Received 256 rows."
Oddly, a normal gallery connected to the same data source still works perfectly fine as long as I don’t filter it.

2. SharePoint (>5000 Items)
Around the same time, I started having issues with large SharePoint lists (I think it happens when it exceeds 5000 items). If I bind a gallery directly to the list, it works. But if I try to filter it, it breaks. Example:
Filter(SharePointList, StartsWith(FieldName, "Test"))

3. The Collection Workaround Returns Blank
I used a common workaround to load more than the normal limit by combining ascending and descending sorts. Now, it just returns a blank collection with no error. Example:

Concurrent(
    ClearCollect(colPart1, Sort(DataSource, UniqueIDColumn, SortOrder.Ascending)),
    ClearCollect(colPart2, Sort(DataSource, UniqueIDColumn, SortOrder.Descending))
);
ClearCollect(
    colFinal,
    colPart1,
    Filter(colPart2, Not(UniqueIDColumn in colPart1.UniqueIDColumn))
);
 

This was all working perfectly until recently, so I’m wondering if Microsoft changed something with delegation or limits.

Has anyone else seen this?

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I have the same question (0)
  • Suggested answer
    11manish Profile Picture
    1,472 on at
    It appears you are encountering a combination of service-side throttling and delegation threshold issues that often surface after data grows beyond specific "tipping points."
     
    Use below :
    • Use the Power Apps Monitor: Open the Monitor tool while running the app. Look for rows marked with an Error status to see the exact HTTP response code and body from the server.
    • Check Connection Sharing: If the app uses "secure implicit connections," try republishing the app to ensure all users have the correct access tokens
  • CU18031535-1 Profile Picture
    2 on at

    @11manish 

    • Use the Power Apps Monitor: Open the Monitor tool while running the app. Look for rows marked with an Error status to see the exact HTTP response code and body from the server.


    I was using the Power Apps Monitor, but I only get a generic error.

     

    • Check Connection Sharing: If the app uses "secure implicit connections," try republishing the app to ensure all users have the correct access tokens

    I'm positive it's not a permissions issue. I'm the owner of the sites where the Lists and Excel files are stored.
  • Kalpesh Barhate Profile Picture
    2 on at
    We also experienced this same issue in our tenant during India morning time. Later early morning today around 2 AM, it got resolved automatically and our canvas app started working as normal
  • WarrenBelz Profile Picture
    155,066 Most Valuable Professional on at
    On the SharePoint side, once you get beyond 5,000 records, you need to index any fields (in SharePoint List Settings > Indexed columns (at the bottom) on any fields used in queries. You are allowed 20 column indexes per list. So for a start, you need the field you posted as FieldName indexed as well as any others involved in either SharePoint or Power Apps queries.
     
    The Excel one is a bit strange (the 256 number) unless this is the exact number returned from your Data Row Limit of records which is then filtered. Excel is the "data source of last resort" anyway - you might consider putting the whole thing in SharePoint.
     
    For the third one, this should work up to 4,000 records, alhtough when you are dealing with Excel, things do not always produce as expected.
    With(
       {
          _First: 
          Sort(
             DataSource, 
             UniqueIDColumn,
             SortOrder.Ascending
          ),
          _Last: 
          Sort(
             DataSource, 
             UniqueIDColumn
             SortOrder.Descending
          )
       },
       ClearCollect(
          colFinal,
          _First,
          Filter(
             _Last,
             !(UniqueIDColumn in _First.UniqueIDColumn)
          )
       )
    )
     
    You can also collect all records as per this blog of mine.
     
    Please Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider answering Yes to Was this reply helpful? or give it a Like
    Visit my blog
    Practical Power Apps    LinkedIn  
     
     
     
     
     
  • WarrenBelz Profile Picture
    155,066 Most Valuable Professional on at
    A quick follow-up to see if you received the answer you were looking for. Happy to assist further if not.
     
    Please Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider answering Yes to Was this reply helpful? or give it a Like ♥
    Visit my blog
    Practical Power Apps    LinkedIn   

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