Great question — answering as the UphillTech team:
Try this $marketplaceIdArray = array("Id" => array($MARKETPLACE_ID)); $parameters = array( 'Merchant' => $MERCHANT_ID, 'MarketplaceIdList' => $marketplaceIdArray, 'FeedType' => '_POST_INVENTORY_AVAILABILITY_DATA_', 'FeedContent' => $feedHandle, 'PurgeAndReplace' => false, //Leave this PurgeAndReplace to false so that it want replace whole product in amazon inventory 'ContentMd5' => base64_encode(md5(stream_get_contents($feedHandle), true)) );
Full answer by Keyur Padalia: https://stackoverflow.stackexchange.com/a/11264819 (CC BY-SA 4.0).
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