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    Nintex Knowledge Base

    Error "'ddlDb' has a SelectedValue which is invalid because it does not exist in the list of items" accessing Manage Database Mappings

    Status: Validated

    ISSUE
    When attempting to access 'Manage Database Mappings' from Central Administration > Nintex Workflow Management > Database Setup the following error might occur:

    'ddlDb' has a SelectedValue which is invalid because it does not exist in the list of items
    ERROR CODE
    RESOLUTION

    Perform a SELECT * FROM query on the following Nintex Configuration database tables:

    • dbo.databases
    • dbo.contentdbmapping
    • dbo.storage
    1. Make sure all database names listed from dbo.databases exist and are online.
    2. Make sure that DatabaseID values from dbo.storage and SPContentDbId values from dbo.contentdbmapping match up to a DatabaseID value from dbo.databases

    Delete any references found to a database that does not exist. 

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