Product titles for vendor accounts are currently only available as geo_sales__product_title, and Amazon rejects productTitle together with the ship-to fields that Geo Sales requires. Amazon’s Vendor Analytics dataset has a standalone Catalog report (groupByKey asin, productTitle, optionally brand and productGroup, no metrics), which always returns the latest values. Please expose it as its own report in the amazon_vendor connector, so vendors can get product names without geographic or sales data.