Combobox issue in Power Apps

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Posted on by erika.papp

Hi everyone,

I’ve recently noticed some unexpected behavior with the new version of the ComboBox in Power Apps. In the old version, I was able to easily search for and find users in a table containing more than 5,000 records. However, with the new ComboBox, searching for a user sometimes returns no results at all.

Can someone explain the differences between the two versions in terms of their backend logic?

Thank you.

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Building Power Apps

Microsoft Dataverse with Power Apps

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11manish 2,028 on at

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The new ComboBox in Power Apps uses stricter delegation and server-side querying compared to the old version, which relied more on client-side filtering.

As a result, searches over large datasets may return no results if the query is not delegable or supported by the data source, making it important to use delegable

functions and properly configured search fields.

Recommendation

If your dataset > 5000:

Use StartsWith()

Keep it simple

Prefer Dataverse over SharePoint

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erika.papp 37 on at

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Thank you.

In case I need to search within names with contains instead of StartsWith(), do you recommend to use the old version instead of the new version?

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MS.Ragavendar 6,862 Super User 2026 Season 1 on at

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@erika.papp,

Classic Control

Search is server‑delegated when possible, Uses SearchFields + StartsWith / Filter and always Keeps querying the data source as the user types.

Classic Combobox supports only Text type data (Numbers wont support) (for e.g. ID columns in sharepoint)

Ms Link : https://learn.microsoft.com/en-us/power-apps/maker/canvas-apps/controls/control-combo-box

Modern Control

It support Client Side Virualization and caching.

Reference Link : https://www.powerapps911.com/post/power-apps-modern-combo-box

For E.g I am having sample collection of 6000 records

ClearCollect(

colSample6000,

ForAll(

Sequence(6000),

{

ID: Value,

DisplayName: "User " & Text(Value, "0000"),

Email: "user" & Value & "@contoso.com"

}

)

);

✅If this helped, please Accept as Solution to help others ❤️ A Like is appreciated 🏷️ Tag @MS.Ragavendar for follow-ups.

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