My UE5.6 project uses both Steam and EOS subsystems. I’m encountering an authentication issue:
- When Steam is running: EOS authentication fails with EOS_AccessDenied (110010) - “Deployment user access forbidden”
- When Steam is closed: Login succeeds without issues
Error Details:
LogEOS: Error response from backend
ServiceName: EOSAuth, Operation: TokenGrant
ErrorCode: errors.com.epicgames.eos.auth.deployment_user_access_forbidden (110010)
DeploymentId: eb50bbacca604af4a345574f2b0ba193
Current Setup:
- Steam App ID: 480
- EOS integrated with Steam authentication
- Both subsystems initialize correctly when Steam is running
Question:
Has anyone encountered this DeploymentId mismatch issue with Steam+EOS integration? Should I verify the DeploymentId in the Epic Developer Portal, or is there a configuration I’m missing?
Thanks in advance!
The following pictures are some of my settings.


