Fix Power Apps Write Errors with Azure SQL Data Warehouse
Question details
The user needs to submit changes from a Power Apps Edit form to an Azure SQL Data Warehouse table.
- Product
- Microsoft Power Apps and Azure SQL Data Warehouse
- Device & OS
- not provided
- Scenario
- An app reads warehouse tables and uses an Edit form to submit changes.
- Observed behavior
- The form submission fails with a "Not a valid connector" error, even though the app can read the tables.
Identify the connection used by the Edit form and note the exact error message. Azure SQL Data Warehouse is now known as dedicated SQL pool in Azure Synapse Analytics, which may help when searching current documentation.
Check Whether the Connector Supports Write Operations
Use this check to determine whether the connector and target support the form's intended update.
Open the app in Power Apps Studio, select the Edit form, and inspect its DataSource property. Open the Data pane to identify the associated connection.
Search Microsoft Learn for the connector's documentation and check its supported actions and limitations for your Azure Synapse dedicated SQL pool. Reading data does not by itself confirm that form submissions are supported.
Review the connection credentials and the target table's write permissions. In Power Apps Studio, inspect the form's Error property after selecting the submit button to capture any additional details.
If write support remains unclear, post the connector name, operation, and error in the Power Apps Community or Microsoft Q&A under the relevant Azure Synapse topic. Do not include credentials or sensitive data.
Use a Supported Transactional Data Source for Form Updates
Consider this approach if the current connector or warehouse target does not support the required writes.
Work with Spreadsheet Data in WPS Office
WPS Office is a free, lightweight alternative for everyday document and spreadsheet work, with a familiar interface and support for common Microsoft Office formats. It does not fix the Power Apps connector or replace a transactional data source.
Frequently Asked Questions
Why can Power Apps read the table but not submit changes?
Read access does not guarantee that the connector and target support writes. Check the connector's Microsoft Learn documentation for supported operations, then review the connection's table permissions.
Where can I find the data source used by my Edit form?
In Power Apps Studio, select the form and inspect its DataSource property. Use the Data pane to identify the associated connection.
What can I use if the warehouse connector cannot write?
Consider a supported transactional source such as Azure SQL Database. Verify connector write support and licensing, add the source through the Data pane, and update the form's DataSource and fields.
Where can I get help with the connector error?
Post the exact error, connector name, and intended operation in the Power Apps Community or Microsoft Q&A under the relevant Azure Synapse topic. Remove credentials and sensitive data first.
