AS400 Jobs failing with AS400 U00029003 File 'UC4/TMP(xxx)' cannot be opened, error code '3101'
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AS400 Jobs failing with AS400 U00029003 File 'UC4/TMP(xxx)' cannot be opened, error code '3101'

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Article ID: 421707

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Updated On:

Products

CA Automic Workload Automation - Automation Engine

Issue/Introduction

In AS400 Agent, some jobs fail because the job output is attempted to be read when it's not yet available with the following error:

U00029003 File 'UC4/TMP(xxx)' cannot be opened, error code '3101', error description: '3101 - Unrecoverable I/O error occurred. >RecordFile.cpp#os400::SequentialFile::open(int, const int &, const int &, const bool &, const int &):478<'.

Environment

Agent AS400 24.x

Cause

DE172686

Resolution

Update to a fix version listed below or a newer version if available.

Fix version:
Component(s): Agent AS400
Automation.Engine 24.4.3 HF1 - Planned release January 2026

Additional Information

Public Title: Agent AE Notification until AS/400 Job Completion

Public Description: A problem has been fixed where the Agent was notifying the Automation Engine too early about the Job end, specifically before the actual Process (AS/400 Job) completed and the associated Job-Output (spool conversion to file) was finalized. The Agent now waits for the Process to fully end before notifying AE, ensuring the Job-Output is available and successfully collected.