Data synchronization method and device, storage medium and program product

The embodiment of the invention provides a data synchronization method and device, a storage medium and a program product. In the embodiment of the invention, through a multi-version mechanism, the application can synchronize the user directory data in the IdP at the background, and convert the oversized database transaction synchronized with the user directory data into the small transaction switched by version information, so that the synchronization of the user directory data is realized. In the process that the application synchronously updates the user directory data, the application can continue to use the user directory data of the previous version and provide services for the target collective, the application provides the services for the target collective and the application synchronously updates the user directory data without resource competition, and the probability of deadlock caused in the user directory data synchronization process can be reduced. 本申请实施例提供一种数据同步方法、设备、存储介质及程序产品。在本申请实施例中，通过多版本机制