ID of global item.
Model info list, model number at most 50
Optionalstandardise_There is at least one standardise_tier_variation and tier_variation.If you want to update one tier/two tier to no tier, can just pass the tier_variation and standardise_tier_variation as [], and pass the global_model >> tier_index as [], meanwhile pass the original_price, seller_stock, etc., to set the price and stock for the modified product with no tier structure.
Request parameters for init_tier_variation
Only for China mainland sellers and Korean sellers. If you only define color, it is one tier, if you define color and size, it is two tier. Support two tier structures at most. This API can change no tier to one tier, no tier to two tier, one tier to two tier, two tier to one tier, one tier to no tier, two tier to no tier. Please create variants after an interval of 5 seconds after creating an item, as there may be a delay.