Multiple channel and attribution fields marked deprecated
DeprecationDeprecation
This is a deprecation — the affected surface still works, but the vendor has marked it for removal. Plan a migration before it goes away.
What changed
Several fields across ChannelDefinition, ChannelInformation, AvailableChannelDefinitionsByChannel, and FulfillmentOrder types have been marked @deprecated, directing users to use OrderAttributionDefinition and Order.attribution instead. Documentation for file upload fields has been updated to clarify support for multiple file types. These changes do not break existing integrations but signal a migration path away from channel-based APIs toward order attribution APIs.