Running inline C# scripts in Azure Logic Apps workflows

Power Platform - General

The article introduces the new Inline C# Action in Azure Logic Apps, allowing users to write .NET C# scripts within the Logic Apps designer in Azure Portal.
The Inline C# Script Code action is tailored to provide portal-only support for C# Script Files (.csx file) for management tasks, workflow automation, and handling C# scenarios directly in Azure Portal without local development environment configuration.
The C# code written in a .csx file is saved in the same folder as the workflow.json file and compiled during Logic App initialization for execution.
The action provides access to standard .NET assemblies, with support for referencing external assemblies using the #r "AssemblyName" directive.
Data can be accessed from workflow triggers using the GetTriggerResults method and from actions using the GetActionResults method.
An example workflow is provided where the action processes base64 representation of a ZIP file, uncompresses it, retrieves string content for each file, and creates Customer records in Dynamics 365 Business Central.
The C# script has limitations such as running for up to 10 minutes and having a maximum output size of 100MB.
Mixing code with low-code workflows can improve performance and enable complex operations in serverless workflows.

Registered users can view the full text for FREE!