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messenger_room_thumbnail_replace_apply

Replace a basic group's image in the Messenger app (pApp D00003). Requires confirmation REPLACE_GROUP_ROOM_THUMBNAIL. Write: other room settings stay unchanged; there is no reset to the default image. A lost receipt stays pending and is never resent; task_resume only observes, and prepared work needs the identical apply. Called without confirmToken it previews and returns a confirmToken; repeating the same input with it executes once.

Inputs

Field Required here Contract
target Yes object
target.roomUuid Yes string; pattern ^[A-Za-z0-9_-]{1,200}$
target.uploadTaskId Yes string; pattern ^[A-Za-z0-9_-]{8,80}$
change Yes object
change.confirmation Yes REPLACE_GROUP_ROOM_THUMBNAIL
confirmToken No string; pattern ^ct[a-f\d]{32}$; The confirmToken from this tool's preview result. Omit it to preview; repeat the same input with it to execute.