Abstract: The invention relates to a method for communicating by means of messaging service messages between at least one sender (4) and at least one recipient (5, 6) via at least one messaging service (11, 12, 13, 15), wherein the messaging service (11, 12, 13, 15) is or will be communicatively connected with an integration platform (1) and a message is sent from the sender (4) by means of the messaging service (11, 12, 13) using a sender-specific sender messaging service identity and a recipient-specific sender messaging service identity to the integration platform (19[sic:1)], a stored sender-specific or recipient-specific platform identity is assigned in the integration platform (1) to the sender-specific sender messaging service identity and to the recipient-specific sender messaging service identity respectively, a recipient-specific recipient identity associated with the recipient specific platform identity is identified, and the message is passed from the integration platform to the recipient-specific recipient