obtaining a component accessing request transmitted by a first client, the component accessing request comprising registration information of the first client;

obtaining, based on the component accessing request, an instant messaging function associated with the registration information from a function set corresponding to the second application platform and encapsulating the obtained instant messaging function to obtain a first communication component;

embedding the first communication component into the first client;

obtaining a message transmitting request transmitted by a first communication component embedded in a first client of a first application platform, the transmitting request comprising message data and the second application platform being different from the first application platform; and

transmitting the message data to a receiver user account according to the message transmitting request,

wherein the data processing method further comprises:

distributing a channel identifier and channel authorization information corresponding to the channel identifier to the first client based on the registration information,

establishing a mapping relationship between the registration information and the channel identifier, and

storing the mapping relationship into a mapping relationship table, the channel identifier being an identifier distributed by the server in a case that the first client obtains the first communication component, and the channel authorization information being used for verifying authenticity of the first client.