JUMP TOAPI ReferenceOverviewAuthenticationSuprSend APIs on PostmanUSERSOverviewUpdate User ProfilepostWORKFLOWSOverviewTrigger WorkflowpostAdding Email AttachmentpostDynamic Workflow TriggerpostAdding Email AttachmentpostEVENTSOverviewTrigger an EventpostAdding Email AttachmentpostTeMPLATESFetch Template ListgetFetch Template detailsgetFetch Template content for a channelgetBRANDSOverviewCreate / Update BrandspostGet Brand datagetGet Brand listgetPREFERENCEOverviewUpdate User Preferences (Category level)postBulk Update User PreferencepatchReset user preferencespatchUpdate User Preferences (Channel level)postGet User Preferences (All Categories)getGet User Full PreferencegetGet User Preferences (single category)getGet User Preferences (Channel level)getUpdate Brand Default PreferencepostGet Brand Default PreferencegetLISTSOverviewCreate a ListpostAdd Subscribers to ListpostRemove Subscribers from ListpostGet List datagetGet all ListsgetDelete ListpatchDelete Draft ListpatchStart SyncpostAdd Subscribers to Draft ListpostRemove Subscribers from Draft ListpostFinish SyncpatchBROADCASTOverviewTrigger BroadcastpostSuprSend API dup2Getting Started With Your APIPowered by Update User Preferences (Channel level)post https://hub.suprsend.com/v1/subscriber/{distinct_id}/channel_preference/API to update user channel preferences