DPS Header getting created for Handshake requests.
The DPSheader is getting created for handshake requests fired from the pubsub. For creating the Header, the request is supposed to contain correlation id and tenant id. These requests are not sensitive to the tenant, and can't be customized to carry tenant information. This makes the handshake requests fail. As a matter of fact, the tenant information will not change or alter the response that has to be generated, and hence having the header creation will not add value to the handshake pipeline.
The recommendation here is to not make headers for handshake requests.