Listing duration/specifics to sales channel

Various platforms have unique rules for listing duration. Here's the breakdown of them:

eBay  —  choose how long to post for or

Good ’Til Canceled Listings (will be relisted automatically every month until sold)

Amazon  —  listings are kept forever until ended by seller. But Amazon adjusts prices, so for no surprises, adjust the min and max prices.

Etsy  —  4 months, lets you autorenew or not

Shopify  —  no expiration by default

Walmart  —  sellers decide the mandatory expiration date (can be multiple decades long)

WooCommerce  —  no expiration by default, sellers can't set it

BigCommerce  —  no expiration by default, sellers can't set it

Add on what platforms have and what Valigara has for fixes