How can you confirm if an update is algorithmic or policy-based?

Confirming whether an update is algorithmic or policy based requires examining provider communications and observed behavior. Policy changes typically receive advance announcement with clear requirements. Algorithmic changes may occur without announcement as models retrain.

Policy changes affect all senders meeting certain criteria uniformly. Algorithmic changes may affect senders differently based on their characteristics relative to new model weights. If the change affects some senders but not others with similar sending patterns, algorithmic factors likely dominate.

Provider documentation distinguishes policy requirements from best practice recommendations. Requirements indicate policy decisions with enforcement. Recommendations suggest algorithmic factors that influence filtering without absolute rules. Understanding this distinction helps prioritize response efforts.