Plugins Not Working gets 503 (Service Unavailable), in HAR log see "pool named |apex|pu|, is not able to proxy to the schema named APEX_PUBLIC_USER"
(Doc ID 2744609.1)
Last updated on FEBRUARY 10, 2023
Applies to:
Oracle Application Express (APEX) - Version 20.1 and laterInformation in this document applies to any platform.
Symptoms
On : APEX 20.1 version, Flow Builder
When attempting to use plugins,
the following error occurs.
ERROR
-----------------------
Failed to load resource: the server responded with a status of 503 (Service Unavailable)
<plugin_name> is not defined
In an HAR result one can see:
Content-Type text/html
Error-Reason error="*APEX_PUBLIC_USER|apex|pu|"; error_description*=UTF-8''The database user for the connection pool named |apex|pu|, is not able to proxy to the schema named APEX_PUBLIC_USER. This could be a configured restriction on the maximum number of database sessions or an authorization failure.
STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Try to use application with plugins
2.Get the 503 error
Changes
Installed a new packaged application
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |