How do I turn on "Online Direct Fulfillment" on the public page? The toggle is grayed out and I cannot open it.

The location is under Product & Catalog → Public Page Management → click a public page → Online Fulfillment. Below the toggle, four prerequisites are listed one by one. The toggle can only be turned on when all of them show "Yes": (1) UPS account is available: either your company's connected UPS account or an activated Sino system discounted shipping account. (2) Your company's basic information has a complete shipping origin address (address, city, postal code, country). (3) You have filled in "Standard lead time: X business days after payment confirmation." (4) You have checked "I confirm that I can receive orders directly online and ship according to the standard lead time." If any condition shows "No," follow the adjacent link (Go to UPS integration settings, Go to company basic information) to complete it. Once turned on, three parameters appear: "Shipping surcharge %," "Fixed handling fee," and "Shipping rounding." Each field is saved immediately after modification. In the same section, you can also set "PI validity period" (blank = 14 days) and "Terms link" (blank defaults to Patisco's terms of service page).