There are certain API limitations from the different cloud storage providers which prohibit the correct and flawless integration of those storages with the Infostore/OX Drive regarding versioning support. Their versioning scheme and/or versioning logic differs a lot from the Infostore/OX Drive's logic. Their data models in conjunction with their APIs provide (different from every provider) subsets of functionality that Infostore/OX Drive requires to correctly and seamlessly support that feature.