How to Use the If Function in Power Apps

If is how a canvas app makes decisions: show this text or that, use this color or that, run this action or not. It takes a condition, a result for when it's true, and (optionally) a result for when it's false. Here's the syntax and two real examples that change a message depending on what Microsoft 365 knows about the user.

Syntax

Syntax

If( Condition, ThenResult )
If( Condition, ThenResult, ElseResult )
If( Condition1, Result1, Condition2, Result2, ..., DefaultResult )

If checks each condition in order and returns the result for the first one that's true. If none are true, it returns the default, or blank when there isn't one (If reference).

Prerequisites

• A canvas app with a Text control. The example uses the job title and manager lines of the Career Development Plan app's Home screen, from Part 4 of the series.

Example 1: A Value, or a Message When It's Missing

The app shows the person's job title, or tells them how to get one:

lblJobTitleHS → Text

If(
    IsBlank(MyJobTitle),
    "Your Microsoft 365 profile has no job title, so there's no plan to show yet. Ask your IT admin to add one.",
    "Job title: " & MyJobTitle
)

The admin has a job title, so the else result shows:

Example 2: The Other Branch

The same pattern for the manager:

lblManagerHS → Text

If(
    IsBlank(MyManager),
    "Your Microsoft 365 profile has no manager, so nobody can review your responses yet. Ask your IT admin to add one.",
    "Manager: " & MyManager.displayName
)

The admin has no manager, so the then result shows:

Both use IsBlank for the condition; see IsBlank vs IsEmpty in Power Apps.

Several Conditions Without Nesting

Instead of If(a, x, If(b, y, z)), list the pairs:

Example

If(
    Status = "Approved", "✓ Approved",
    Status = "Declined", "Needs changes",
    "Waiting for review"
)

When every condition compares the same value, Switch is tidier: Switch(Status, "Approved", …, "Declined", …, "Waiting for review").

Common Mistakes

Mistake	What happens	Do this instead
No else result where a value is required	The control shows nothing when the condition is false	Add an else
Results of different types	An error or a surprising conversion	Return the same type from every branch
Deeply nested Ifs	Hard to read	List condition-result pairs, or use Switch

Troubleshooting

Symptom	Likely cause	Fix
The wrong branch shows	The condition isn't what you think	Select the condition in the formula bar to see its value
Nothing shows	No else, and the condition is false	Add an else
A long formula is hard to read	Everything on one line	Expand the formula bar and use Format text

FAQ

Can If run actions?

Yes, in behavior properties such as OnSelect: If(IsBlank(txtName.Value), Notify("Enter a name"), SubmitForm(frmMain)).

What does If return with no else?

Blank, when the condition is false.

Is there an "else if"?

Yes: keep adding condition-result pairs in the same If.

Conclusion

If(condition, then, else) picks between results; add more condition-result pairs for more cases. Always give a value-returning If an else, and keep every branch the same type.

Additional Resources

• If and Switch functions: syntax and examples.