The identification of Dagan with d BE is the key to understanding his role within the pantheon, what his attributes were and what was the extent of his cult. G. Pettinato was the first to identify d BE with Dagan, considering it to be an epithet of the god, "Lord" and he interpreted the month BE-li as the commemoration of a festival dedicated to the lord or a feast dedicated to Dagan who is "The Lord" par excellence. A. Archi also identified d BE with Dagan, interpreting it as a logogram or as an abbreviation of belu "lord", a special epithet of Dagan.....
If we restruct ourselves to the documentation at our disposal, we can only conclude that Dagan, as such, does not occur in quotations in context in the texts from Ebla. Only the d BE of Tuttul 'The Lord of Tuttul" is Dagan, with almost complete certainty. The sanctuary of Dagan at Tuttul is very well documented from the Sargonic period and during the whole of the second millenium. The most logical conclusion is to think that "the Lord of Tuttul" is Dagan, and thus Dagan was worshipped at Ebla under this local dedication. The presence of a divine statue of the goddess Sha(l)ash as the consort of d BE in Tuttul (EB:T 18), is further proof for identifying "The Lord of Tuttul" with Dagan, since in later tradition Dagan has Shalash as a consort. This goddess is documented in three other texts from Ebla, but in these cases connected with the god Wada'an(u) and with Karramu, which according to A. Archi is a town to the northeast of Ebla, beyond the Euphrates Valley....
The oldest reference to a possible consort of Dagan comes from Ebla. There we find an offering to the "Lord of Tuttul" (= Dagan) and a consignment of silver and gold for the statue of the goddess Sha(l)asha; other texts from Ebla seem to indicate that this goddess was paired with the god Wada'an, even so, the coupling with Dagan seems evident, especially if we consider the information from the textual material of the second millenium. The fact that there was a goddess who continued to be worshipped in Tuttul, one of the holy cities of the cult of Dagan where king Sargon of Akkad prostrated himself before the god, added to the consort having the same name in the list Babylonian An=Anum shows there is little margin for doubt. In the Old Babylonian period, Dagan appears to have a special relationship with the goddess Ninhursag ....
The key could be in a text from Aleppo found in Mari in which there is a reference to a mourning ceremony for the death of Sumu-epuh, in this text Dagan occurs accompanied by the goddesses Hebat and Shalash; the presence of the former can be explained as she is the wife of the patron god of Aleppo (Addu) and as daughter of Dagan. It is reasonable, then, that Shalash occurs in the text as Dagan's wife, from which we may infer that Ninhursag is the learned writing of the name of the goddess Shalash, Dagan's traditional consort according to the Babylonian god lists and according to the material from Ebla. Other typically southern writings found in Mari may also correspond to Shalash, such as Ninlil, Enlil's traditional wife in Babylonia, or Ninkugi, who is equivalent to Shalash in the lists....
One of the problems that remain unresolved is that Dagan and Adad appear to share a wife. For this apparent contradiction various solutions have been proposed by the experts. The most common view has been to deduce a certain equivalence of attributes or identification of the two gods. Other scholars have preferred to see an equivalence of the two gods by Babylonian theologians; others have left the question as inexplicable, the result of traditions coexisting. Shala's relationship with Adad is well attested already in the Old Babylonian period and continues afterwards, both in the Assyrian texts and in late Babylonian rituals....
What is called the 'pantheon of Mari' lists Dagan, The-Lord-of-the-land (Bel-matim) and Shalash (Ninhursag). If we accept the hypothesis of seeing Lord-of-the-land as a hypostasis of Addu, it seems obvious that there is a 'family' enumeration of the three deities, that is to say, Father, Son, and Mother: Dagan, Addu, and Shalash; in this way we already have evidence for a father-son relationship between Dagan and Addu in the first half of the second millenium. It can also be noted that the weapons of Addu from Aleppo are deposited in the temple of Dagan in Terqa in order to perform the coronation ceremony of the king of Mari and stage the mytheme of the combat between the Storm-god and the god of the Sea. In this ceremony, Dagan had a passive role, was the host of the ceremony, in this way however he gave it legitimacy as father of the gods and as father of Addu, the main protagonist of the mytheme. This close relationship between Dagan and Addu is evident in the texts from Mari that invoke the gods together, this evidence, together with the material from Ugarit naming Baal as the son of Dagan, invite proposing this father-son relationship already in the Old Babylonian period.
Looking through this evidence, it seems appropriate to posit that in the Ebla texts "Wada'anu" is an epithet of Dagan, whose rituals involving worship of the dead are directly evoked by the Hebrew yd'ny. Dagan also originally bore the title Baal/Bel "Lord". Then in the Middle Bronze Age, with Hadad being designated as Dagan's son, Dagan's attributes were shifted to Hadad/Addu, so that the latter began to bear the title Baal and in Akkadian and Assyrian texts, Addu even took over Dagan's wife in modified form.