I am using Magento 2.1.2 and when I update tier price information using the REST api, the product in website value is modified.
For instance, I issue a POST
request on /{website}/V1/products/{sku}/group-prices/{customerGroupId}/tiers/{qty}/price/{price}
my Tier prices are OK but the product is being added to other website it was not part of before the tier price update.
Am I doing anything wrong ?