How to Validate SharePoint Fields Based on Status With Power Automate
Question details
The user needs to enforce conditional validation rules in a SharePoint list, ensuring specific fields are populated depending on the selected status (e.g., requiring the 'IT Responsible' field when the status is 'Clarification').

- Product
- SharePoint and Power Automate
- Device & OS
- not provided
- Scenario
- Setting up dynamic, status-dependent validation to check whether conditionally required fields are properly populated before or after a list item is updated.
- Observed behavior
- Standard SharePoint list forms do not natively enforce dynamic field requirements based on status selections, allowing items to be saved with missing dependencies.
Ensure you have Site Owner or Edit permissions on the target SharePoint list, and verify that you have an active license to create flows in Power Automate.
Use Power Automate to Validate Fields on Modification
Implement a backend check using Power Automate that triggers whenever a SharePoint item is created or modified to verify status-dependent fields.
Enforcing rules through a Power Automate flow ensures data integrity at the backend level. This prevents incomplete entries even if a user bypasses front-end app validations by using Quick Edit or external APIs.
Log in to Power Automate, click 'Create', and select 'Automated cloud flow'. Choose the trigger 'When an item is created or modified' and connect it to your target SharePoint site and list.
Add a 'Condition' action to evaluate the current status of the list item. Set the condition to check if the 'Status Value' equals your target status (for example, 'Clarification').
In the 'If yes' branch of your first condition, add a second 'Condition' action. Configure it to check if the conditionally required field (e.g., 'IT Responsible') is blank or empty.
In the 'If yes' branch of the second condition (meaning the field is missing), add an action such as 'Send an email (V2)' to notify the user who modified the item that they must provide the missing information.

Validate Fields Before Submission Using Power Apps
Customize the SharePoint list form with Power Apps to display an error and prevent submission if required fields are missing for the selected status.
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Frequently Asked Questions
Can I use native SharePoint list validation instead of Power Automate?
Yes, for simple scenarios you can use built-in SharePoint List Validation. Go to List Settings > Validation settings, and input a formula like `=IF([Status]="Clarification", IF(ISBLANK([IT Responsible]), FALSE, TRUE), TRUE)`. However, Power Automate offers greater flexibility for complex rules, multi-list lookups, and automated email alerts.
Why is it recommended to enforce validation rules in the backend flow?
Front-end validations customized via Power Apps only apply when a user fills out that specific form. If a user updates data via the 'Edit in grid view' (Quick Edit) feature or through an external API connection, the Power Apps rules are bypassed. Backend flow validation ensures data integrity regardless of how the item was modified.
How do I make my status validation rules easier to maintain?
Instead of hardcoding status strings and field names into your Power Automate flows or Power Apps formulas, create a separate 'Configuration' SharePoint list. Store your statuses and their corresponding required fields there. Your flows or apps can then query this list to evaluate validation rules dynamically.




