R12: PAXPREPR: Unable To Add A New Peer Task, Get Error: "Task Number Is Not Unique." (Doc ID 1587799.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle Project Foundation - Version 12.1.3 and later
Information in this document applies to any platform.

Symptoms

On : 12.1.3 version, Project Definition

When attempting to add a new peer task on an existing project,
the following error occurs.

ERROR
-----------------------
"Task number is not unique."


STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Query an existing project in the Projects form.
2. Open the Tasks screen
3. Try to add a new peer task '400', get the error: "Task number is not unique."

However, this task '400' doesn't exist in PA_TASKS table.


Cause

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