Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Manideep Kodela — Wed, 01 Apr 2026 04:28:14 GMT

It Was Solved
Thank you!!

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

taylorb — Wed, 01 Apr 2026 00:04:43 GMT

Since you've tried the XML fixes already and modules still don't show up, the issue is almost certainly one of these two things: **1. Missing resource bundle.** Appian 24.1 requires a properties file for every expression function. Create `src/main/resources/com/example/HelloPlugin.properties` with at least: `hello.name=hello` `hello.description=Returns a greeting` The keys must match the function name. Without this file the plugin loads but registers zero modules because it can't resolve the function metadata. **2. The JAR isn't shading dependencies correctly.** Make sure your pom.xml uses maven-shade-plugin or maven-assembly-plugin to produce a fat JAR. If the Appian SDK classes end up inside your JAR instead of being marked as `provided`, the classloader conflict silently prevents module registration. Check your `tomcat-stdOut.log` right after uploading. Even when Modules shows empty, Appian usually logs a specific error like 'Could not resolve resource bundle' or 'ClassNotFoundException.' That log entry will tell you exactly which of these two it is.

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

jithesh — Fri, 27 Mar 2026 07:33:53 GMT

Looks like plugin-info tag also missing. Not sure where you picked up this appian-plugin.xml from. You can download any function plugin from app market and unzip it to check the appian-plugin.xml and use it as reference.

Also, I dont see you mention resource bundles in your post. Thats the next error you will hit if its missing. (Hope you are checking the tomcat log for plugin deployment errors) Based on your locale setting you need to supply the resource bundle with the funtions name in your project.

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Manideep Kodela — Fri, 27 Mar 2026 04:35:19 GMT

I have done that as well
Still modules are not appearing

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

jithesh — Fri, 27 Mar 2026 04:11:40 GMT

Your appian-plugin.xml seems to be incorrect. Use below in place of <functions> tag. <functions> is not required.

<function name="helloPlugin" key="helloPluginV1"
		class="com.example.HelloPlugin" />

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Manideep Kodela — Fri, 13 Mar 2026 07:16:00 GMT

Anyone know?

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Shubham Aware — Thu, 12 Mar 2026 05:58:58 GMT

No restart needed!
Without logs/pom.xml, exact cause can't be confirmed. Can you share either?

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Manideep Kodela — Thu, 12 Mar 2026 05:53:55 GMT

Thank you for the response Shubham
and Yeah I did the Modifications you told,but still modeules weren't available
Do we need to restart the server after deploying to get the modules available?

RE: Appian Plugin Deploys Successfully but No Modules Appear in Admin Console (Expression Function)

Shubham Aware — Thu, 12 Mar 2026 05:46:41 GMT

You could try this,
Replace <functions> with <expression-function key="hello" name="hello" class="com.example.HelloPlugin"/> in your XML.
Remove static from your Java method.
Run mvn clean package, re-upload JAR -> Modules will populate.