In order to update the price or stock if you use multi warehouse, you have to indicate in which warehouse you want to update the stock.
curl --location --request POST 'https://api.miravia.com/rest/product/stock/sellable/update' \
--form 'app_key="{{app_key}"' \
--form 'access_token="access_token"' \
--form 'timestamp="{{timestamp}}"' \
--form 'sign="{{sign}}"' \
--form 'sign_method="sha256"' \
--form 'payload="{
\"Request\": {
\"Product\": {
\"Skus\": {
\"Sku\": [
{
\"SellerSku\": \"{{your_sku_id}}\",
\"MultiWarehouseInventories\": {
\"MultiWarehouseInventory\": [
{
\"WarehouseCode\": \"dropshipping\",
\"SellableQuantity\": 30
}
]
}
}
]
}
}
}
}"'
