What action is NOT allowed once the Workflow is certified?

The correct action associated with being NOT allowed once the Workflow is certified is data entry for the assigned Entities. Once a Workflow is certified, it indicates that the data and processes have gone through a validation process, thus entering new data directly could alter the integrity of the certified information. The certification phase typically signifies that the data is finalized and that further alterations through direct data entry are restricted to maintain accuracy and consistency in reporting and analytics.

In contrast, performing calculations, generating reports, and importing new data can still occur after certification, as these actions do not compromise the already validated state of the Workflow. Calculations are often processed based on the certified data, reports can be generated to analyze the certified outcomes, and importing new data may be permissible in other workflows or systems, presumably under controlled circumstances that do not undermine the certified state.