Abstract: A system, method, and computer program product are provided for processing interdependent transactions between a requesting system and a target system. In use, a first request to process associated first data is received at a target system, the first request being received from a requesting system. Further, it is determined that processing of the first data by the target system is dependent on processing of second data associated with at least one second request. Responsive to determining that the processing of the first data by the target system is dependent on processing the second data by at least one second request, the first request and the associated first data are stored in the target system, in a temporary cache, a transaction is created by the target system, a notification is sent to the requesting system indicating that processing of the first data was not completed, and a transaction identifier associated with the transaction is sent to the requesting system.