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Updated:June 20, 2017
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This document describes issues on persistent variable configuration loss in Unified Contact Center Enterprise (UCCE) and Packaged Contact Center Enterprise (PCCE) environment after ICM router restart.
User variables are created to be used as a temporary storage that can be tested with an If node. For example, user variable called userOpenHours to be used as a temporary storage area for a string value used by an If node.
After you define a variable, you can then use the Formula Editor to access the variable and reference it in expressions, just as you would with a built-in variable.
Cisco recommends that you have knowledge of these topics:
Windows Server 2012
Historical Data Server (HDS)
In CCE environment, there are conditions that are related to persistent variables's values being lost. This is the list of most common conditions and the solution is identical:
1. You configure persistent varaible and check persistent box is in User Variable List and save the configuration. But, when you run query from Persistent-Variable table, table is empty.
2. Restart of ICM Router or exit_router causes loss of the value of persistent variable.
3. Persistent variable fails to replicate to HDS.
Persistent variables must be written to the DB table in order to ICM router to read back after ICM router restart or reboot.
From the Config. manager user list variable, ensure persistent tick box is checked. This ensures value in persistent variable is written into database.
However, following registry controls the behaviour.
To change the treatment of persistent variables, change the registry on the logger (side A and side B, if duplexed):