Al-Ula was one of the most important commercial stations on the convoys' road running from the south of the Arabian Peninsula to Iraq, Levant and Egypt. Lehyan benefited from the convoys passing through their country by collecting taxes, levies, providing services, food and drinks and others to owners of the convoys.

They also worked in the trade transfer, barter system and trading from the south of the Arabian Peninsula where their inscriptions indicate to the alms and sacrifices, which are provided by traders to their god Zu Ghibah on trade carrying camels. In addition to trade, they worked in agriculture as many words are mentioned in the inscriptions that indicate to their knowledge of agriculture such as Kharf which means crops harvested in the Autumn, Ditha which means the crops harvested in the Spring, Thirt which means agricultural land and Mo which means water. Beside trade and agriculture, their economy depended on grazing. Their inscriptions are full of sacrifices and alms given to Zu Ghibah such as she-camels, black camels, and cattle. Such sacrifices had not been given if there was no integrated economic system codifying alms and overseeing their spending.

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