What are the difference between beliefern and liefern? I know that both mean to deliver but are they interchangeable?
Rivets Pink Ankle Stiletto Studded Beige Trim Heels Classic Pumps Sandals High CAMSSOO Gold T Strap Women's Studs Patent Shoes tXqEwC8WO
"liefern" requires info on what is being delivered, optionally to whom it gets delivered to.
"beliefern" is the other way round. You must define who gets it, but it's optional to state what gets delivered.
Note Hans Peter's examples and add the example
Patent CAMSSOO Strap Women's High Ankle Pumps Heels Pink Sandals Studs Rivets Studded Gold Shoes Stiletto T Trim Beige Classic Wir liefern Tomaten.
for clarity of the usage.
beliefern is the transitive version of liefern. The former automatically asks for an (accusative) object. It's like the difference between antworten und beantworten:
antworten auf die Frage = die Frage beantworten