Used to automatically start a scheduled sale. If empty, the plan is on sale immediately. Only applies when `sale_enabled` is `true`. Format: `Y-m-d H:i:s`.
Used to automatically start a scheduled sale. If empty, the plan is on sale immediately. Only applies when `sale_enabled` is `true`. Format: `Y-m-d H:i:s`.
Used to automatically start a scheduled sale. If empty, the plan is on sale immediately. Only applies when `sale_enabled` is `true`. Format: `Y-m-d H:i:s`.