Data mismatch occurring during go-live stages can happen and cause disruptions. This can happen due to untested cases, such as change of financial years or unexpected negative values in data.

The users tend to get disappointed if the figures they see on the dashboard are not to their expectations, even if you have delivered great looking dashboards. The consultant must plan about avoiding these scenarios by having detailed test cases. The data must be tallied with existing reporting tools or manually generated reports.

The consultant must also have the business users do a detailed data validation before go-live. This helps to get acceptance of the users and also helps in making them familiar with the software.