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Error Code Guide

This document summarizes the error codes that may occur during workflow node execution. For each error code, it provides the cause, how to check it, and how to resolve it. Error codes are categorized by node type and situation, and include both errors that occur during the validation stage and errors that occur during execution.
1
Check the Error Code
Check the error code in the execution log or response message.
2
Review the Error Code Documentation
Review the description and cause of the relevant error code in the documentation.
3
Check Configuration Values or Request Information
Check whether the node configuration values or request parameters have been entered correctly.
4
Resolve the Issue and Run Again
After updating the configuration, run the workflow again to verify that it works properly.

Quick Links to Node Errors#

1.
AgentRag
2.
ApiCall
3.
DocGen
4.
Function
5.
IfElse
6.
Loop
7.
OpenLLM
8.
Post
9.
Rag
10.
Response
11.
Variable

Error Code Summary#

Retryable Errors (✅)#

These errors may occur due to temporary issues and can be resolved by retrying after a short delay:
NodeError Codes
ApiCallAPICALL_CONNECTION_FAILED, APICALL_CONNECTION_TIMEOUT, APICALL_READ_TIMEOUT, APICALL_WRITE_TIMEOUT, APICALL_DNS_FAILURE, APICALL_HTTP_408, APICALL_HTTP_429, APICALL_HTTP_500, APICALL_HTTP_502, APICALL_HTTP_503, APICALL_HTTP_504, APICALL_HTTP_SERVER_ERROR
FunctionFUNCTION_DNS_FAILURE, FUNCTION_CONNECTION_REFUSED, FUNCTION_CONNECTION_TIMEOUT, FUNCTION_READ_TIMEOUT, FUNCTION_WRITE_TIMEOUT, FUNCTION_REMOTE_TIMEOUT, FUNCTION_REMOTE_CONNECTION_ERROR
OpenLLMOPENLLM_DNS_FAILURE, OPENLLM_CONNECTION_REFUSED, OPENLLM_CONNECTION_TIMEOUT, OPENLLM_READ_TIMEOUT, OPENLLM_WRITE_TIMEOUT, OPENLLM_CONNECTION_ERROR, OPENLLM_STREAMING_ERROR, OPENLLM_HTTP_429, OPENLLM_HTTP_500, OPENLLM_HTTP_502, OPENLLM_HTTP_503, OPENLLM_HTTP_504, OPENLLM_HTTP_SERVER_ERROR
RAGRAG_DNS_FAILURE, RAG_CONNECTION_REFUSED, RAG_CONNECTION_TIMEOUT, RAG_READ_TIMEOUT, RAG_WRITE_TIMEOUT, RAG_CONNECTION_ERROR, RAG_TIMEOUT, RAG_HTTP_429, RAG_HTTP_500, RAG_HTTP_502, RAG_HTTP_503, RAG_HTTP_504, RAG_HTTP_SERVER_ERROR
AgentRagAGENTRAG_DNS_FAILURE, AGENTRAG_CONNECTION_REFUSED, AGENTRAG_CONNECTION_TIMEOUT, AGENTRAG_READ_TIMEOUT, AGENTRAG_WRITE_TIMEOUT, AGENTRAG_CONNECTION_ERROR, AGENTRAG_TIMEOUT, AGENTRAG_HTTP_429, AGENTRAG_HTTP_500, AGENTRAG_HTTP_502, AGENTRAG_HTTP_503, AGENTRAG_HTTP_504, AGENTRAG_HTTP_SERVER_ERROR
DocGenDOCGEN_TIMEOUT, DOCGEN_QUEUE_TIMEOUT

Non-Retryable Errors (❌)#

Please check your workflow settings or contact your administrator:
Validation Errors: *_MISSING_*, *_INVALID_*, *_UNSUPPORTED_*
Authentication Errors: *_HTTP_401, *_HTTP_403
Client Errors: *_HTTP_400, *_HTTP_404, *_HTTP_CLIENT_ERROR
Processing Errors: *_PARSE_ERROR, *_PLACEHOLDER_*, *_TYPE_MISMATCH, *_TYPE_CONVERSION_*
SSL Errors: *_SSL_ERROR
Execution Errors: *_EXECUTION_ERROR, *_JOB_ERROR, *_SUBFLOW_*
System Errors: *_UNKNOWN_ERROR, EXECUTOR_*, WORKFLOW_*
DocGen: DOCGEN_RUNTIME_NOT_AVAILABLE, DOCGEN_FONT_NOT_AVAILABLE, DOCGEN_UNSUPPORTED_FORMAT, DOCGEN_PANDOC_FAILED

Contact#

If the error persists or additional support is needed, please contact the technical support team with the error code and detailed message.
Modified at 2026-05-27 11:32:24
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