Oracle Application R12 12.2 one user cannot logon

Updated on: 28th Feb 2023

Our previous solution to fix “one user cannot” logon was doomed by additional issues sooner than expected. We had to regenerate the jar files using ADADMIN finally to close the issue.


We are using Oracle EBS R12 for last 12 years and recently upgraded to 12.2.10. We hardly had much technical issues with the instance until recent days, then came a real annoyance.

One particular user was unable to logon. Instead of OA_HTML page, he was either getting redirected to logout page or the OA_HTML page keeps on trying to load. One of the workarounds we came across was, resetting his password. Once the password changed, he was taken to setup password page and to regular landing page. Well, this also turned into troublesome as each time his session expired, we were forced to reset his password.

So what went wrong? We had an issue with concurrent manager outputs and logs opening into a blank page recently. This happened after RMAN backup up, that is scheduled and we had to run autoconfig to fix this issue. Although autoconfig fixed that issue, opened issues with user logon, as explained above. We kept on watching the alerts for possible errors and there were none. Anyhow, we decided to do the following as the ONLY one relevant document we were able to find on Oracle support was “Unable To Login With One User On Oracle EBS Application (Doc ID 2480008.1)” and the case described was not our case.

This is what finally worked:

  • Cleared global cache (didn’t fix issues)
  • Shutdown Apps tier
  • Ran autoconfig on database Tier
  • Ran autoconfig on both Run and Patch file systems
  • Restarted Apps tier and the issues were resolved

We really don’t know what happened after the RMAN & we didn’t update/altered the OS (Oracle Linux 7). Well, things could go south once in a while, after all Oracle EBS is such a huge and complex repository!

Oracle Forms Developer 10g crashes when opening modules

Oracle developer Forms version 10g is still used. Used by Oracle for their E-Business Suite & they will continue using this obsolete, unstable version until the day EBS is discontinued. So, let us see how to make the best out of what is available.

One of the major nuisances a developer (definitely) will come across while using this obsolete version of Oracle Developer on Windows 7 or later versions of Microsoft OS is, opening a module that has underlying database level objects changed (procedures/functions/packages), this IDE crashes without generating any error logs. Simple as it is. This could completely cripple the developer, especially when rapid developments miss to document the changes.

Is it possible to open FMB files without being connected to database? it is another BIG NO NO. Developer 10G will crash immediately incase if you try to open an FMB file that has database objects referred. So what is the next possible solution?

Well there is a solution that is dirty, having to install Oracle Forms Developer 12c ( Just install the suite as standalone without Weblogic. This version is fault tolerant and will not try to validate the database level object calls & crash. By this, you can verify, compile and see what objects were changed, non-existing etcetera.

Oh yes, make sure you have copied your source FMB files to a new folder prior opening them with Forms Developer 12c!. Always remember, Oracle EBS R12 only compiles FMB files created using Oracle forms 10g. You could lose your original files forever if you forgot to do that.

Here is an excellent article explains how to install standalone Oracle Forms 12c.

Oracle EBS R12(12.0.x) | Disable concurrent programs executing immediately after a clone

Hi guys

One of the annoyances suffered by business is the alerts and concurrent programs those start sending highly confusing messages to users immediately after a cloning completion. Application tier cloning finishes by trying to start all related services after a successful cloning. Hence the best method to stop the concurrent manager/alerts from firing up is NOT to let the cloning process start application tier level services, so that you can disable alerts/concurrent programs those are NOT required by the cloned instance.

First step is to alter the $COMMON_TOP/clone/bin/ (perl script, please refer the image)


Change the portion in the highlighted block as shown below. This will stop the clone script from kick starting the application services after a successful clone.

[code language=”perl” gutter=”false”]
elsif (!($PLATFORM eq "win32")) {
print "\n Not Starting application Services for $s_dbSid:\n";
#bugfix:5838814 subgovin
#runPipedCmd("$s_config_home/admin/scripts/adstrtal.$scrExt -nopromptmsg", "$s_apps_user", "$gConfig{‘appspass’}");
Now, you may proceed to disable all or selected alerts/concurrent programs using backend before starting the Application services.

Please note, this workaround is ONLY tested on 12.0.x releases of Oracle Applications. Please adjust to your environments.




Oracle EBS R12 | Inventory | Receipts stuck in pending status

Sometimes the receipts against internal requests could get into trouble with the status pending. While the requester tries to receive the transaction, receipts get created with zero quantities and the internal sales order yet in open status and the quantities are seen in staging location. Please follow the below to delete such pending lines to receive the quantities once again to the targeted sub-inventory

As inventory super user

Transactions -> Receiving -> Transactions Status Summary


Under the tab “Supplier and Internal”

Select the “Destination” tab

Enter the name of the requester name (the name of the user who has created the internal material request to limit the lines fetched) & find the transactions

Delete the lines matching the transaction & save


Go back to receipts and enter the request number once again to receive the materials


for Windows7bugs