Why do some OTAs not directly connect with hotels, but generate direct connection services such as chinaonline?

There is a simple reason. Pms suppliers will not easily open interfaces to other suppliers, which involves the data security of hotels. Since OTA can't get such an interface, how can it be directly connected? Changlian is the direct service provider of hotel network channels under Century, which basically serves PMS, opera, fidelio, sinfonia, Neusoft and before that, Taineng. If the hotel does not use these PMS, other PMS suppliers will not open the interface to Changlian, except in special circumstances. In addition, basically no hotel will choose stone-based PMS just for the service of Changlian, right? ! As for which OTAs have chosen the direct connection of Changlian, it is not convenient to answer directly due to some objective factors, but most OTAs called on the number have cooperation with Changlian. Alibaba has just invested in Shiji, where to go is a typical example.