Amazon has announced a new update on Stranded Inventory which may save time and make things easy.
Previously, each stranded listing that was unblocked or had met qualifications required sellers to click Edit and then Save and finish. Now when listings are approved by Amazon, they become automatically available for customers within 24 hours.
Sellers can also now set the time (up to 30 days) that inventory is stranded by clicking Edit automatic-action settings on Fix stranded inventory. The new automated settings are set for a default of 30 days.
Reference: Automated fixes for stranded inventory(Login required)