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Status Submitted
Workspace Cognos Analytics
Components Other
Created by Guest
Created on Apr 20, 2022

Fix Custom Calculation validation error

We recently created a Case to ask about a validation error that occurs in Cognos' "Create Calculation" editor. Those error details are summarized below, and in this linked Case: From the Case description: "Cognos allows you to create custom calculations using your database fields, as described on these pages: In the "Create Calculation" editor, there is a "Validate" button that is supposed to validate the expression. However, when I create my expression using our database fields and click Validate, it gives me this error: 'The expression is not valid. XQE-DS-0009 Data source "" was not found in Content Manager.'" As you can read in the Case history, we eventually determined that this error occurs for us because we use a macro in the Content Manager Data Source to dynamically assign a Data Source based on the specific client that is using Cognos. We need to do that because we're using Cognos as a multi-tenant solution, and the Data Source is going to vary based on the office key (6-digit number) of the client. Unfortunately, it appears that this macro takes time to evaluate, and it usually doesn't evaluate quickly enough to allow the validation function in the "Create Calculation" editor to work. IBM attempted to replicate this error on their side, but were unable to do so. Nevertheless, the error continues to occur in our environment, so we want to submit this as an Idea for the future. Can the validation functionality be changed in such a way that it doesn't run into a timing problem when a macro is used in the Content Manager Data Source?