Section 2.5 Figure 3 includes Step 4 which is labeled as "Consumer requests add/modify or delete of member" but the narrative below indicates that the Provider should use the add and remove APIs to update the list. The figure wording suggests a request for the Payer (producer) to make the change rather than the provider (consumer) actively making the change. For clarity, I suggest updating the figure to read "Consumer adds/modifies or deletes member(s)" or something similar