19c Database with Oracle E-Business Suite R12 Known Issues & Solutions

 The purpose of this document is to present known issues and solutions for the 19c Database Upgrade with Oracle E-Business Suite (EBS).

Important Information Regarding the Upgrade to Oracle Database 19c

1. When upgrading your Oracle E-Business Suite to Oracle Database 19c, your database will be converted to a multitenant architecture, which will consist of a Container Database (CDB) with a single Pluggable Database. Only multitenant architecture database are supported for Oracle E-Business Suite with Oracle Database 19c.
2. During the upgrade, you will also perform steps to migrate directories defined for PL/SQL File I/O to database directory objects. This requirement is due to the desupport in Oracle Database 19c of the UTL_FILE_DIR database initialization parameter.
3. Oracle 19c Database Release Update Information for Oracle E-Business Suite:
   
   • Oracle Database Release Update 19.3 as well as Release Update 19.5 and later are certified.
   • Oracle recommends that you upgrade to the latest Oracle Database Release Update that is certified with Oracle E-Business Suite. Applying the latest Release Update will ensure that you have the security-related fixes and high-priority non-security fixes. See My Oracle Support Knowledge Document 2285040.1, Release Update Introduction and FAQ, for more details.
   • You can upgrade directly from an earlier Oracle Database version to Oracle Database Release Update 19.3 or Release Update 19.6 or later.
   • You cannot upgrade directly to Oracle Database Release Update 19.5. You must first upgrade from your earlier Oracle Database version to Oracle Database 19.3, and then apply Oracle Database Release Update 19.5.

 E-Business Suite 19c Database Upgrade Analyzer (Doc ID 2704990.1) 

The E-Business Suite 19c Database Upgrade Analyzer is a self-service health-check script that reviews E-Business R12 19c Database Upgrade related data, analyzes current configurations and settings for the environment and provides feedback and recommendations on the progress of your 19c database upgrade and any potential missing or failed upgrade steps. Analyzers may also be used as data collection tools by Support Engineers. Your application data is not altered in any way when you run this analyzer.

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NOTE: In the images below and/or the attached document, user details / company name / address / email / telephone number represent a fictitious sample (based upon made up data used in the Oracle Demo Vision instance). Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.
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NOTE: Make sure to review Doc ID 2567105.1 which contains commonly asked questions and answers about using Oracle E-Business Suite with the multitenant architecture.

 

QUESTIONS AND ANSWERS

 

Questions

Questions	Answer
Which listener.ora should be used to start database listener ?	$ORACLE_HOME/network/admin/listener.ora should be used. Use $ORACLE_HOME/appsutil/scripts/<pdbname>_<hostname>/adcdblnctl.sh script : Example  adcdblnctl.sh start <CDBNAME>
How to know which listener.ora is used ?	Run lsnrctl status CDBNAME command look for value of "Listener Parameter File" in the output. Example : Listener Parameter File   /u01/oracle/db/tech/19.3/network/admin/listener.ora

 

Problems

 

Database Issues

Issue	Solution
ORA-65064: system ts doesn't exist An ORA-65064 might have been raised when we attempted to plug in a legacy database into a CDB and the legacy database was created under a pre-V8 database release and then moved to later releases using the migrate utility	Cause: When you plug that database into a Multitenant environment you will see an ORA-65064 and the tracefile will have a message that reads:     kpdbcPlugVerifyFiles: ORA-65064: system ts doesn't exist Solution: The Multitenant architecture has a fundamental assumption that any plugged in database will have a file from the SYSTEM tablespace with a relative file number of 1. You may be seeing this issue if the database was created under v7 or earlier, was upgraded to later releases using the migrate utility and an ORA-65064 is raised during the plug-in operation and where the tracefile indicates that we could not find the system tablespace. Checking the XML file generated using dbms_pdb.describe() should also show that there is no SYSTEM tablespace with a relative file number (<rfn>..</rfn>) of 1. WORKAROUND: Use exp/imp or datapump to rebuild the database first and then perform the plug in operation.
ORA-7445 [qkacco] when running a Complex Query with Nested Joins ORA-07445: exception encountered: core dump [qkacco()+91] [SIGSEGV] [ADDR:0x0] [PC:0x289204B] [Address not mapped to object] []	Solution: ORA-7445 [qkacco] when Running a Complex Query with Nested Joins (Doc ID 2664281.1) Do not set optimizer_adaptive_plans=false at database level as a workaround. Instead use SQL-Profile, hints , "alter session" commands, etc  to change setting at session level for problematic SQL. Wait for database patch . Apply patch for database Bug 30621255
ORA-01034 while running txkPostPDBCreationTasks.pl script Starting Context Generation Tool at Tue May 19 13:24:17 CDT 2020 Using GenerateContext version 120.20.12010000.16 Connecting to the cgdev2 database instance... Connection parameters values: Database server hostname ==> databasehostname.xx.yy.com Database listener port ==> 1521 Database SID ==> PDBNAME Database schema name ==> apps Could not Connect to the Database : ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist Linux-x86_64 Error: 2: No such file or directory Additional information: 4376 Additional information: 226357863	Database listener.ora parameter should have following setting USE_SID_AS_SERVICE_<CDBNAME>=ON Without this setting GenerateContext.class file fails to connect to database because it uses JDBC connect string hostname:port:SID notation. But this is changes in 19c and it is hostname:port/SID. Notice / instead of :  . Setting USE_SID_AS_SERVICE_<CDBNAME>=ON solves this issue
Invalid APPS database user credentials errors when running txkPostPDBCreationTasks.pl Post PDB script failing with following errors : *******FATAL ERROR******* PROGRAM : (.../appsutil/bin/txkPostPDBCreationTasks.pl) TIME : Sat May 16 16:47:09 2020 FUNCTION: main::validateAppsSchemaCredentials [ Level 1 ] ERRORMSG: Invalid APPS database user credentials. *******FATAL ERROR******* PROGRAM : (/.../appsutil/bin/txkPostPDBCreationTasks.pl) TIME : Sat May 16 16:47:09 2020 FUNCTION: main::validateAppsSchemaCredentials [ Level 1 ] ERRORMSG: Invalid APPS database user credentials.	Database parameter instance_name was set to PDB_NAME . It should set to CDB_NAME.
PDB services are not registering with database listener	Make sure the database parameter local_listener is not set at PDB level . This value should be inherited from CDB. After the change run "alter system register;" command so that services will be registered with the listener.
High "row cache mutex" waits are seen in AWR reports due to SQLs against v$session/v$process Example SQLs : 0u11juyazvjf5 SELECT PR.SPID , SE.SID , SE.PROGRAM , SE.MODULE FROM V$SESSION SE , V$PROCESS PR WHERE SE.SID = (SELECT SID FROM V$MYSTAT WHERE ROWNUM = 1) AND SE.PADDR = PR.ADDR 0y6qmpuvm4w9u select sid from v$session, v$process where audsid= sys_context('userenv', 'sessionid') and addr=paddr 1wr32ytknh1u9   SELECT P.PID, S.PROCESS, P.SERIAL#, P.SPID FROM V$PROCESS P, V$SESSION S WHERE S.AUDSID = USERENV('SESSIONID') AND S.PADDR = P.ADDR 0y7y17bcappxk   SELECT P.PID, P.SERIAL#, P.SPID FROM V$PROCESS P, V$SESSION S WHERE S.AUDSID = USERENV('SESSIONID') AND S.PADDR = P.ADDR	Solution is to apply database Patch 31903523 . Until then contention can be reduced as follows : - Disable EBS auditing : "Sign-On:Audit Level" . - IF MWA is used , then apply MWA patch 17288009 to reduce # of executions of SQL 0y6qmpuvm4w9u - Turn off SQL tracing
Running ADZDDBCC.sql in 19c database is taking time for Section 26.	Before running report set parameter _px_cdb_view_enabled to false . alter session set "_px_cdb_view_enabled"=false ;
Concurrent programs are failing with ora-20100: Temporary file creation for FND_FILE failed errors. This can be reproduced as follows in SQL-Plus : SQL> exec FND_FILE.PUT_LINE(FND_FILE.LOG, 'THIS IS A TEST'); BEGIN FND_FILE.PUT_LINE(FND_FILE.LOG, 'THIS IS A TEST'); END; * ERROR at line 1: ORA-20100: ORA-20100: Temporary file creation for FND_FILE failed. Directory &FILE_DIR is invalid, contact your system administrator. Action: Check that the directory is a valid directory with write permissions on the database server node and is listed under utl_file_dir para ORA-06512: at "APPS.FND_FILE", line 319 ORA-06512: at "APPS.FND_FILE", line 364 ORA-06512: at "APPS.FND_FILE", line 421 ORA-06512: at line 1	There are three reasons for that failure : 1> utl_file_dir parameter is not set . Run following SQL to check select value from apps.v$parameter where name = 'utl_file_dir';   2> Event 10946 should be set as explained in Note 2525754.1 alter system set events '10946 trace name context forever, level 8454144'; alter system set event='10946 trace name context forever, level 8454144' scope=spfile; 3> First value from above SQL should match to value of $APPLPTMP environment parameter
Running Materialized View refresh programs are running longer and locks are seen in the database	This is caused by RDBMS Bug 30402386 and explained in Note 2716307.1 Apply database patch. Until then set following hidden parameter as a temporary workaround : ALTER SYSTEM SET “_mv_refresh_shrink_log”=FALSE;
Database alert.log reports parsing errors for FND_SESSION_MANAGEMENT package 2021-03-09T05:07:08.548176-08:00 mypdb(3):WARNING: too many parse errors, count=621 SQL hash=0x8a3bb1a5 mypdb(3):PARSE ERROR: ospid=24007, error=6550 for statement: 2021-03-09T05:07:08.549382-08:00 mypdb(3):declare PRAGMA AUTONOMOUS_TRANSACTION;begin fnd_signon.audit_client_ip(:1,:2); commit;exception when others then rollback;end; mypdb(3):Additional information: hd=0x61fa9b68 phd=0x6daec960 flg=0x100476 cisid=65 sid=65 ciuid=65 uid=65 sqlid=bb9xkdf53rcd5 mypdb(3):...Current username=APPS mypdb(3):...Application: e::bes:oracle.apps.icx.security.session.created Action: / mypdb(3):WARNING: too many parse errors, count=336 SQL hash=0xe2823bd1 mypdb(3):PARSE ERROR: ospid=16624, error=6550 for statement: 2021-03-08T04:16:36.045025-08:00 mypdb(3):BEGIN :1 := FND_SESSION_MANAGEMENT.getHttpOnly(:2); END; mypdb(3):Additional information: hd=0xc12e4490 phd=0x84b82418 flg=0x100476 cisid=65 sid=65 ciuid=65 uid=65 sqlid=7kcmdtbj84fyj mypdb(3):...Current username=APPS mypdb(3):...Application: e::bes:oracle.apps.icx.security.session.created Action: /	Errors are safe to ignore since they will not be reported to end users. Apply E-Business Suite Patch 32429191:R12.FND.C and Patch 33429261:R12.FND.C .
txkCreatePDB.pl Completes with PDB Plugged in with "Open No Master Key" For an existing 19c container database, Plugin a EBS PDB in container database, Using txkCreatePDB.pl the wallet status for newly created PDB shows "OPEN_NO_MASTER_KEY" and the PDB is in Restricted Mode  =================== SQL> select * from v$encryption_wallet; WRL_TYPE WRL_PARAMETER STATUS WALLET_TYPE WALLET_OR FULLY_BAC CON_ID -------------------------------------------------------------------------------------------------------------- -------------------- --------- --------- FILE <Location> OPEN_NO_MASTER_KEY AUTOLOGIN SINGLE UNDEFINED 0 This Applies to EBS 12.1.3 & All 12.2 Versions which supports 19c Database including  OCI/On-Premises/Exadata and any other platform.	1. This can be caused due to passing a wrong value in secret key while plugging the PDB using txkCreatePDB.pl. 2. The Script should stop and fail without plugging the PDB when a wrong argument is been passed for secret key during the execution of txkCreatePDB.pl, hence there is an Enhancement request raised with the Product Development for the same "Enh 33566579" 3. To overcome this Situation, please apply the workaround given in the following Note  Manually Re-import the Secret Key in E-Business Suite Database On Premises & Cloud (Doc ID 2826133.1)
Bug 33405295 - DBMS_STATS.IMPORT_DATABASE_STATS FAILING WITH ERROR OPERATION NOT ALLOWED FROM WITHIN A PLUGGABLE DATABASE	Please follow the below action plan to solve the import stats error issue :    Gather schema stats on the source, as below: sqlplus apps/<apps> 1. exec fnd_stats.gather_schema_statistics(schemaname=>'ALL',estimate_percent=>dbms_stats.auto_sample_size,options=>'GATHER AUTO'); 2. Backed up Statistics into FND_STATTAB, following Doc ID 1581549.1 - Section 7.10.2.1 - Exporting Statistics - (using the FNDSTATS SQL provided within the note). 3. Then follow Doc ID: 2615617.1, as below: Section 5.9 - Export the Applications database instance Section 6.4 - Import the Applications database instance Section 7.1 - Reset Advanced Queues Section 7.2 - Run adgrants.sql Section 7.3 - Gather statistics and fixed objects statistics Section 7.4 - Run post PDB script 4. Upgraded FND_STATTAB Statistics Table: sqlplus system/<system_pw>@MOSCOW exec dbms_stats.upgrade_stat_table('APPLSYS','FND_STATTAB'); 5. Restored Statistics from FND_STATTAB following 1581549.1 - Section 7.10.2.2 Importing Statistics - (using the FNDSTATS SQL provided within the note).
Bug 33427856 - Gathering statistics for indexes on large tables in 19c may be time-consuming (Doc ID 33427856.8)	Apply Patch 33427856 or use workarounds until then Massive Performance Degradation On Statistics For Large Partitioned Tables After Upgrade To 19c (Doc ID 2611336.1)

 

OCI Database Issues

Issue	Solution
Failure in opening the PDB, after renaming it during refresh Core Dump during DBMS_SERVICE.START_SERVICE using case sensitive name for PDB DB System Platform: ExaCS DB Version: 19.10	Solution: Apply Patch 31143870
ORA-65092: system privilege granted with a different scope to 'OEM_MONITOR' Failure in Datapatch with error: ERROR at line 1: ORA-65092: system privilege granted with a different scope to 'OEM_MONITOR' ORA-06512: at line 6 ORA-06512: at line 2 DB System Platform: VM DB System DB Version: 19.8	Solution: Apply Patch 31796208 and rerun datapatch

 

Forms Issues

Issue	Solution
ORA-1017 when opening Forms and ORA-1017 Invalid username/password; logon denied FRM-41352 failed to create a new session	Cause: Misconfiguration with the listener and registration of services: Solution: 1. In 19c database service_name parameter should be set to container name      Connect to the CDB and run the following commands:         alter System set SERVICE_NAMES='<CDBNAME>' SCOPE=BOTH;         alter system register; 2. Verify that the PDB database is registered with the  listener       Connect to PDB and check value of local_listener parameter. It should be not be set at PDB level and should be same as CDB value. 3. PDB should have at a minimum of these services in 12.1 and 12.2.   select name from v$active_services; 12.1:   ebs_<PDB NAME>  <PDB NAME> 12.2:   ebs_<PDB NAME>   <PDB NAME>   <PDB_NAME>_ebs_patch 4. Listener should be started using CDB environment file       cd $ORACLE_HOME         .CDB_HOSTNAME.env          lsnrcrt stop CDBNAME        lsnrctl start CDBNAME 5. You should see something similar to the following: $ lsnrctl status LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 29-APR-2020 16:32:48 Copyright (c) 1991, 2019, Oracle. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) STATUS of the LISTENER ------------------------ Alias VISCDB Version TNSLSNR for Linux: Version 19.0.0.0.0 - Production Start Date 22-APR-2020 21:27:31 Uptime 6 days 19 hr. 5 min. 17 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/oracle/db/tech/19.3/network/admin/listener.ora Listener Log File /u01/oracle/db/tech/19.3/admin/PDB_HOSTNAME/diag/tnslsnr/HOSTNAME/cdb/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=HOSTNAME.<HOSTNAME>)(PORT=1521))) Services Summary... Service "2809223196ec2af8e053a740d20a4db6" has 1 instance(s). Instance "CDB", status READY, has 1 handler(s) for this service... Service "PDB" has 2 instance(s). -----> PDB service. Started when PDB is started Instance "PDB", status UNKNOWN, has 1 handler(s) for this service... Instance "CDB", status READY, has 1 handler(s) for this service... Service "PDB_ebs_patch" has 1 instance(s). ----> Created during post PDB steps , needed for ADOP patching Instance "CDB", status READY, has 1 handler(s) for this service... Service "CDB" has 1 instance(s). ---> CDB service , not used by EBS but needed for connections to CDB Instance "CDB", status READY, has 1 handler(s) for this service... Service "CDBXDB" has 1 instance(s). --> optional XDB service Instance "CDB", status READY, has 1 handler(s) for this service... Service "ebs_PDB" has 1 instance(s). ---> Created during post PDB steps , needed for EBS Instance "CDB", status READY, has 1 handler(s) for this service... The command completed successfully
APP-FND-00706: Routine Detected a data error	Cause: Cursor leaking in the database. The following file version has the bug code: $Header fdfdds.lc 120.23.12020000.20 2019/04/25 09:45:45 <USER> ship $ Solution: After Upgrading To 12.2.9 Forms Fail: "Error APP-FND-00706: Routine Detected A Data Error" (Doc ID 2629037.1)
ORA-04025: maximum allowed library object lock allocated for SELECT NLS_CHARSET_NAME  Following errors are seen in oacore log files during load testing oacore.default_group.2:292946577:-1:-1:GUEST(6):266001490:Thread[AJPRequestHandler-HTTPThreadGroup-6,5,HTTPThreadGroup]:1587728106:172.22.180.117:6160782:0:1341:ERROR:[fnd.common.ErrorStack]:java.sql.SQLException: ORA-20001: Oracle error -4025: ORA-04025: maximum allowed library object lock allocated for SELECT NLS_CHARSET_NAME(:B1 ) FROM SYS.DUAL ORA-06512: at "SYS.STANDARD", line 270 ORA-06512: at "APPS.FND_GLOBAL", line 1219  has been detected in fnd_global.set_nls. ORA-06512: at "APPS.APP_EXCEPTION", line 72 ORA-06512: at "APPS.FND_GLOBAL", line 280 ORA-06512: at "APPS.FND_GLOBAL", line 1584 ORA-06512: at "APPS.FND_GLOBAL", line 2017 ORA-06512: at "APPS.FND_GLOBAL", line 2652 ORA-06512: at "APPS.FND_GLOBAL", line 2804 ORA-06512: at "APPS.FND_SESSION_MANAGEMENT", line 999 ORA-06512: at "APPS.FND_SESSION_MANAGEMENT", line 1304 ORA-06512: at "APPS.FND_AOLJ_UTIL", line 433 ORA-06512: at "APPS.FND_AOLJ_UTIL", line 329 ORA-06512: at line 1     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445)     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)     at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)     at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)     at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)     at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)     at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:204)	Apply database <Patch 31820859> : ORA-4025 DUE TO 65535 ACTIVE LOCKS LIMIT REACHED ON SELECT NLS_CHARSET_ID
FRM-40735: ON-ERROR Trigger raised unhandled exception ORA-01001	Solution: Using Oracle 19c RAC Multitenant (Single PDB) with Oracle E-Business Suite Release 12.1 (Doc ID 2530680.1)
ORA-65011: when opening forms after upgrading EBS Apps database 19c  Similar to to ORA-1017 errors in 12.2	Cause: Issue is related with service names            E-Business Suite 12.1 database should only have one service name defined Solution: service_names --> parameter should point to CDB only connect to PDB and run following SQL select name from v$active_services; this should return PDB name . If nothing is returned, then shutdown EBS services,, shutdown DB listener, then close PDB , bounce CDB, start DB listener, start EBS services and re-check. Service should be automatically started when PDB is opened

Login Issues

Issue	Solution
Intermittent login issues after 19c upgrade. The end users will see the following login issues - AppsLocalLogin.jsp will have a copyright date of 2014 - See login page not with style sheets - The system has encountered an error - Uncaught exception	Apply database Patch 31820859

 

Upgrade Issues

Issue	Solution
Running noncdb_to_pdb.sql fails with ORA-01219 : DATABASE OR PLUGGABLE DATABASE NOT OPEN: QUERIES ALLOWED ON FIXED TABLES OR VIEWS ONLY. When a non-CDB, having configured WALLET_ROOT and TDE_CONFIGURATION is cloned or described/plugged as a PDB, opening the PDB (the PDB created from non-CDB) fails with ORA-01219 : DATABASE OR PLUGGABLE DATABASE NOT OPEN: QUERIES ALLOWED ON FIXED TABLES OR VIEWS ONLY	Cause: Following Bug has been identified in EBS Database TDE configuration. This issue occurs while performing database upgrade to 19c. BUG 31494095 - NONCDB_TO_PDB.SQL FAILS WITH ORA-01219: DATABASE OR PLUGGABLE DATABASE NOT OPEN: QUERIES ALLOWED ON FIXED TABLES OR VIEWS ONLY Solution: Patch 31494095
Autoconfig Run Fails With Error 'tackTrace: java.lang.NullPointerException at oracle.apps.ad.context.GenerateContext.getPDBCDB' Due To Missing 'SELECT_CATALOG_ROLE' In Adgrants.sql When upgrading the database from 11.2.0.4 to 19c with EBS version R12 using Doc ID 2580629.1, Autoconfig failed with the following error: "Autoconfig could not create context file."	R12 E-Business Suite Upgrade To 19c Autoconfig Run Fails With Error 'tackTrace: java.lang.NullPointerException at oracle.apps.ad.context.GenerateContext.getPDBCDB' Due To Missing 'SELECT_CATALOG_ROLE' In Adgrants.sql (Doc ID 2672303.1)
Autoconfig is running slower after 19c upgrade.	Slow SQL was SELECT UO.object_name, aa.object_name procedure_name, aa.ARGUMENT_NAME FROM user_objects uo, all_arguments aa WHERE uo.object_name = 'FND_GSM_UTIL' AND aa.object_id = uo.object_id AND aa.object_name = 'UPLOAD_CONTEXT_FILE' AND object_type = 'PACKAGE' ORDER BY 1, 2, 3 SQL is modified to select from user_arguments instead of all_arguments. Fix is in Patch 31138017:R12.TXK.C Refer to 12.2 E-Business Technology Stack Autoconfig Performance Issue After Upgrade to 19c Database (Doc ID 2684666.1) for more details.
Running Autoconfig errors after 19c upgrade on application tier - Unable to read UTL_FILE_DIR parameter ERROR DESCRIPTION: *******FATAL ERROR******* PROGRAM : (/fs2/EBSapps/appl/fnd/12.0.0/patch/115/bin/txkCfgUtlfileDir.pl) TIME : FUNCTION: main::getUtlFileDirParam [ Level 1 ] ERRORMSG: Unable to read UTL_FILE_DIR parameter. ERRORCODE = 1 ERRORCODE_END .end std out. The following select also fails to return results: select value from v$parameter where name='utl_file_dir';	R12 E-Business Suite Technology Stack Post 19c Upgrade, Running Autoconfig Script txkCfgUtlfileDir.pl Fails With Fatal Error In FUNCTION: main::getUtlFileDirParam ERRORMSG: Unable to read UTL_FILE_DIR parameter (Doc ID 2685022.1)
Unable to call FND_LDAP_WRAPPER.CREATE USER  - ORA-06508: PL/SQL: could not find program unit being called If you upgraded to 19c prior to June, you may need to apply Patch 31088182. While creating a user in EBS 12.2.4, and after migrating to DB19c, you can run into this problem: Unable to call FND_LDAP_WRAPPER.CREATE USER due to the following reason:    ORA-06508: PL/SQL: could not find program unit being called.    (USER_NAME=<USER>)

References :

NOTE:2567105.1 - FAQ: Oracle E-Business Suite and the Oracle Multitenant Architecture

NOTE:2826133.1 - Manually Re-import the Secret Key in E-Business Suite Database On Premises & Cloud
NOTE:2655839.2 - Information Center: Oracle Database 19c with Oracle E-Business Suite 12.2 and 12.1
NOTE:2580629.1 - Interoperability Notes: Oracle E-Business Suite Release 12.1 with Oracle Database 19c
NOTE:2683670.1 - Previous Oracle Database 19c Release Update Database Patch Lists for Oracle E-Business Suite
NOTE:2716307.1 - Refresh Collection Snapshots Running Long After DB Upgrade
NOTE:1594274.1 - Oracle E-Business Suite Release 12.2: Consolidated List of Oracle Database Patches and Bug Fixes
NOTE:2525754.1 - Using UTL_FILE_DIR or Database Directories for PL/SQL File I/O in Oracle E-Business Suite Releases 12.1 and 12.2

NOTE:2611336.1 - Massive Performance Degradation On Statistics For Large Partitioned Tables After Upgrade To 19c 

19c Database with Oracle E-Business Suite R12 Known Issues & Solutions (Doc ID 2662860.1)