Excel Tools Missing IN or OUT parameter at index

Error is due to incorrect parameter mapping, not version mismatch.
Excel Tools 2.8.x+ is compatible with Appian 24.2. Check your stored procedure parameters (especially index 2) and test any plugin upgrade in a lower environment first.

The parameters are mapped correctly and I had also verified the Excel headers with table column names. Following is the plugin param list which I am using and the Database Field Names are passed as a constant value. Both DB field name and excel headers have 22 items and are passed as constants. Even the spellings are verified multiple times.

Stack trace is as follows:

ERROR ImportExcelFileToDatabase ORA-17041: Missing IN or OUT parameter at index: 2
https://docs.oracle.com/error-help/db/ora-17041/
 java.sql.SQLException: ORA-17041: Missing IN or OUT parameter at index: 2
https://docs.oracle.com/error-help/db/ora-17041/
	at oracle.jdbc.driver.OraclePreparedStatement.processCompletedBindRow(OraclePreparedStatement.java:2065)
	at oracle.jdbc.driver.OraclePreparedStatement.addBatch(OraclePreparedStatement.java:10181)
	at oracle.jdbc.driver.OraclePreparedStatementWrapper.addBatch(OraclePreparedStatementWrapper.java:1003)
	at jdk.internal.reflect.GeneratedMethodAccessor3033.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:123)
	at jdk.proxy2/jdk.proxy2.$Proxy228.addBatch(Unknown Source)
	at com.appiancorp.ps.exceltools.util.ExcelHelperUtils.importExcelFile(ExcelHelperUtils.java:902)
	at com.appiancorp.ps.exceltools.smartservice.ImportExcelFileToDatabase.run(ImportExcelFileToDatabase.java:86)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:136)
	at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:54)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:136)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:130)
	at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:28)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:130)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:22)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
	at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:143)
	at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
	at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:136)
	at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
	at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:110)
	at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:241)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)

Error is caused by how the plugin binds parameters in the database, not by a mismatch of field counts.
It often happens due to a bug or strict type/data validation.
Upgrade Excel Tools to 2.8.x or later. Upgrading the plugin usually resolves this issue