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Builder review8 min readUpdated June 5, 2026

Set-value, default, and calculation rules

Know what can be scaffolded as Power Fx and what needs formula cleanup after import.

Quick answer

In short

Simple set-value rules can be scaffolded. Complex XPath, date math, repeating-group calculations, and secondary-source lookups usually need builder review.

Most likely cause

InfoPath rule formulas and Power Fx are different languages. A field can be detected correctly but still require formula translation.

What to do next

Check action details in the Rules tab, then inspect generated Default, Update, OnChange, and OnSelect formulas in Power Apps Studio.

Good candidates for scaffolding

  • Set a field to a literal value such as Draft or Submitted.
  • Copy one field value into another field.
  • Set a show/hide state flag for navigation.
  • Set a date to Today/Now when the target field is obvious.

Manual review candidates

  • XPath expressions using complex functions.
  • Calculations across repeating rows.
  • Lookups into secondary data sources with filters.
  • Rules that depend on user identity, permissions, or external systems.

Validation approach

  1. Pick one source rule from the Rules tab.
  2. Find the target control or button in Power Apps Studio.
  3. Inspect the relevant formula property.
  4. Perform the user action and confirm the target field changes.
  5. Submit and reopen the record to confirm the value persisted.

Keep reading the next most relevant guides for this form pattern.

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