Regular expression

What it does

This action transforms, extracts, or stores data used by later workflow steps. The converted flow must preserve the source expression, output variable, and any formatting or type conversion behavior.

How Flow Migrator maps it

Flow Migrator maps this to Compose expression placeholder using Data Operations. Regex intent is preserved, but complex patterns may require manual Power Automate expression or custom code review. Flow Migrator can preserve and generate the core mapping, but this action should be reviewed after import.

Common migration issues

• Review the generated action after import because some Nintex behavior does not map one-to-one to Power Automate.
• Validate expression syntax, data types, escaping, HTML output, and array/object handling in Power Automate.
• Run a test instance and compare outputs against the original Nintex workflow before production migration.

Validation checklist

1. Review this item before export or immediately after import.
2. Open the generated flow and confirm the action card imported correctly.
3. Validate connection references and required settings before running the flow.
4. Test with representative source data from the original workflow.