All the documentation related to eCommerce is available in this Gdrive folder.
Depanding on the company, the same URL is used, except the extension:
/ecom/… = Solvay
/ecom1/… = BASF
/ecom2/… = DOMO
/ecom3/… = Odyssey
Note about delivery block in PF1 :
Table ZZV_OF_UE_CHECK is managing an entry to apply a delivery block CE in automatic for Ecommerce sales orders.
The entry for Ecommerce (PROGR = ECOMMERC & SUBPROG = LIFSKSET) is called from the Ecommerce BAPI (ZWOC_ECOM_ORDER_CREATE)