Demystifying Adobe Journey Optimizer Error Codes: Root Causes and Fixes (Part-2)

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In the first part of this series, we explored the essentials of Adobe Journey Optimizer (AJO) error codes—why they matter, how to approach them, and how quickly understanding these signals can transform your troubleshooting experience.

In this second installment, we go a step further and include more frequently encountered error codes. We’re presenting a curated, in-depth table of even more AJO error codes you’re likely to encounter as you build, test, and launch omnichannel campaigns. Think of this guide as your “cheat sheet” for campaign health: If the mysterious codes below pop up in logs or UI banners, you’ll know exactly where to look, what likely caused it, and how to get unstuck fast.

Whether you’re facing backend 500 errors, validation problems, or puzzling runtime glitches, this list breaks down each code’s context, root cause, and practical steps to resolve or avoid it. Keep this resource handy—it’s designed to help your ops, technical teams, and marketers spend less time staring at system logs and more time optimizing customer journeys.

Below is your expanded table of Adobe Journey Optimizer Error Codes – with context, causes, and resolutions for each scenario.

CJMPTS Error Codes (Push/Transport Service)

Error Code	Context / Description	Likely Root Cause	Recommended Actions
CJMPTS-1510-500	500 Internal Server Error on push-channel send	Backend push/transport malfunction; provider or infra error	Check channel provisioning; Retry; check request ID/logs
CJMPTS-1023-500	"Internal Server Error during push send/process" (esp. on 3rd party gateways)	Temporary cloud malfunction or unknown service error	Verify provider/channel config; Retry; check logs/contact support
CJMPTS-1310-500	500 Internal Error from Render Service ("preview" or live send, CBE especially)	Downstream template renderer failed (usually JSON/template issue)	Validate template syntax/variables; use a test payload; retry

CJMRT Error Codes (Journey Runtime/API)

Error Code	Context / Description	Likely Root Cause	Recommended Actions
CJMRT-030012-422	422 Unprocessable Entity – failed action, invalid event, or bad payload	Invalid input data (e.g., nonexistent audience, event, or attribute)	Double-check input/event body; verify referenced objects exist
CJMRT-130004-400	400 Bad Request ("Malformed input", likely in journey node/channel config)	Journey payload or configuration references removed/invalid resource	Check journey node/channel setup; fix references; rebuild if necessary
CJMRT-000032-409	"Conflict: Already Exists" (409) when creating/activating journey or resource	Attempt to create resource that already exists (ID duplicate)	Use unique IDs/names; clean up conflicting objects
CJMRT-170016-400	400 during journey config/preview ("Dependency missing" or template error)	Payload missing required dependency, or broken template link	Validate required resources are active and linked
CJMRT-080608-400	400 Bad Request in domain/channel/delegation (e.g., DNS)	Required DNS records or email/SMS config missing	Complete the missing setup; run config wizards again
CJMRT-110100-500	500 Internal Error on payload–most often a backend data/config bug	Bug in backend pipeline or unsupported configuration	Retry or escalate with request ID and payload

CJMMAS Error Codes (Message Authoring Service)

Error Code	Context / Description	Likely Root Cause	Recommended Actions
CJMMAS-1149-400	400 Bad Request when saving message, preset, or variant	Required fields missing in message or bad config	Complete all required fields; validate message/preset setup
CJMMAS-2073-422	422 Unprocessable Entity, particularly in Message Preset edit	Validation error, unsupported field, or improper syntax	Correct syntax/field error; compare to known-good config; use message UI validation
CJMMAS-1300-500	500 Internal Error from message-authoring (preset/template)	Backend crash—infra, large content, or service down	Simplify template/content; Retry; escalate if persistent
CJMMAS-2001-200	200 OK, but error banner: "opt-out link is not present" in email	Missing opt-out (unsubscribe) link in a variant	Add the required opt-out link to every language variant
CJMMAS-1603-403	403 Forbidden when updating/publishing template or preset	User lacks permission/role, or action not allowed	Confirm roles, user access level, preset status

CJMCMP Error Codes (Campaign)

Error Code	Context / Description	Likely Root Cause	Recommended Actions
CJMCMP-2050-400	400 Bad Request in Campaign activation or approval	Campaign references invalid/missing policy or segment	Audit node/policy/segment links; update with correct current configuration

Armed with this expanded catalog of error codes, you can approach troubleshooting in Adobe Journey Optimizer with greater confidence and efficiency. These steps will help you resolve the most common issues and keep your campaigns running smoothly.

However, if you encounter persistent errors or roadblocks that aren’t resolved by the guidance provided here, don’t hesitate to escalate the issue to Adobe Support for further investigation and resolution. With the right knowledge and resources, you’ll minimize downtime, avoid surprises, and deliver exceptional customer experiences every time.