Described herein is a computer implemented method for operating a collaboration system to synchronize integrations installed on a client device with integrations stored by the collaboration system. The method comprises: receiving a synchronization request from the client device and, for a given integration included in the synchronization request: retrieving a system integration token and comparing a client integration token received in the request with the system integration token. Responsive to determining that the client and system integration tokens do not match, the method further comprises determining the client to be out of date with respect to the given integration and sending an integration update to the client device.