Running a build on a classification index cancels what aspect of document management?

Running a build on a classification index specifically affects the active learning project validation in progress because it can disrupt the training data that is currently being evaluated or utilized for making classification decisions. When a build is initiated, it may alter the way documents are classified, causing inconsistencies in the training set that the active learning process relies on. This disruption can invalidate the current results of the active learning project, as the model may no longer be based on the same characteristics or features it was previously trained on.

The other options pertain to different aspects of document management. Future coding decisions involve the planning and architecture for future classifications, which are not directly impacted by the build process itself. Document audit trails maintain records of actions taken on documents, and running a build does not eliminate or overwrite these records. Permission settings on documents govern access rights, and while a build may affect visibility or organization, it does not directly cancel or alter these predefined permissions. Thus, the choice regarding active learning project validation stands out as the most relevant aspect affected by running a build on a classification index.