Concurrent program is one of the most important features in Oracle Apps. Here I am listing questions and answers on the concurrent program in Oracle Apps. It will definitely help you for Interview preparation.

What is a concurrent program and how to define it?

A concurrent program is a system job which accepts some inputs, executes business logic to achieve the required functionality. Multiple instances of the program can be run in simultaneously(concurrent) processing a different set of data and pointing to same executable. A Concurrent manager controls the execution of the concurrent program. Concurrent processing helps to effectively use hardware capacity.

Below are the steps to define concurrent program in Oracle Apps following below steps,

  • Create concurrent program execution file
  • Define executable
  • Define concurrent program
  • Register concurrent program with responsibility

Read: – How to define Concurrent Program in Oracle Applications

How to submit a concurrent program from back-end using PL/SQL?

Oracle Apps provides a built-in API fnd_request.submit_request to submit a concurrent program from back-end using PL/SQL.

Simple steps are,

Initialize Oracle apps context using fnd_global.apps_initialize and then call API fnd_request.submit_request. This API return request id if program submitted successfully else return 0.

Read: – Submit Concurrent Program from back-end using fnd_request

is it possible to submit a concurrent program from UNIX?

Yes. It is possible. CONCSUB in a utility provided by Oracle to submit a concurrent program from UNIX OS.

Read:- Submit concurrent program using CONCSUB utility

What is MOAC in R12 and how it impacted concurrent programs?

MOAC stands for Multi-Org Access Control. This is a new feature introduced by Oracle in EBS R12 Release which allows users to see data of multiple operating units from a single responsibility.

As concurrent programs are also attached to responsibility Oracle added additional parameter Operating Unit while submitting the request from SRS form. Depending on the setup of the concurrent program it shows operating unit, which user has to choose before submitting concurrent program.

This operating unit mode setup is done from System Administrator Responsibility path is System Administration > Concurrent Programs.

Operating Unit Mode can have below values,

  • S – Single Org
  • M – Multi-Org
  • null

Read:- Operating Unit Mode parameter in Concurrent Program

is it possible to email output of the concurrent program, if yes, how?

Yes, it is possible. While submitting a concurrent request, select delivery options. It opens a form where you can choose the delivery option. Select email tab and enter all necessary information and submit the program.

Same can be achieved while submitting a program from backend using fnd_request.add_delivery_option API.



What is concurrent program incompatibility?

Concurrent programs run asynchronous and in background. A user can submit multiple instances of program and all could be running at the same time. It may cause problem if one instance modifies data of other. There also could be a possibility that program A and B should not run together due to some data dependency.

You set this concurrent program incompatible with itself or other program so that those should not run together. One instance or concurrent program wait till another completes. You can define concurrent program incompatibility from Application Developer–>Concurrent Program –> Define and click incompatibility button.

Questions and Answers on concurrent program in Oracle Apps


I am Oracle Certified Associate(OCA) working in Oracle Domain since last 15 Years. Started this blog to share knowledge about different Technologies mostly focussing on Oracle.

One thought on “Questions and Answers on concurrent program in Oracle Apps

  • December 11, 2017 at 1:16 pm

    very nice post keep it up

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