Agentforce Agent Unable to Process Uploaded Files with Agent Script

Hi everyone,

I’m trying to enable file upload and file processing in an Agentforce Service Agent, but I’m unable to get it working.

Setup

• I have created a Service Agent using Agent Script.
• I have configured the agent based on Salesforce’s documentation for file uploads: 
  Configure File Uploads for Agentforce
• I have also tried creating a separate sub-agent specifically for handling uploaded files, but the behavior is the same.

Issue

Whenever I upload a file during the conversation, the agent responds with:

The file upload itself appears to happen, but the Agentforce agent is not able to process or access the uploaded file.

What I have tried

1. Followed the configuration described in the Salesforce documentation.
2. Created a separate sub-agent to handle file processing.
3. Tested with different files, but the result is the same.
4. Verified that the Agentforce agent itself is working correctly for normal text-based requests.

Question

Has anyone encountered this issue with an Agentforce Service Agent built using Agent Script?

Are there any additional configurations, permissions, actions, or Agent Script settings required to allow the agent to access and process uploaded files?

I would particularly like to understand how Agentforce handles the uploaded file internally and what configuration is required for the file to become available to the agent/sub-agent.

Any guidance on troubleshooting this would be greatly appreciated.

Thanks!