Columns	Error
channel	Invalid Channel
store_code	Invalid Store Code
style_code	Invalid Style Code
style_tag	Style tag should be among Core, Key and Brand only.
style_rank	Style Rank has to be greater than zero
Two styles cannot have same rank for same Store and Style Tag
segmentation	segmentation should be either 0 or 1
depth_grading_factor	Invalid depth_grading_factor,
it should be an integer