Questions around the TYPO3 integration and plugins as well as Flow and NeosCMS
Forum rules: Always add your TYPO3/Flow, Aimeos and PHP version as well as your environment (Linux/Mac/Win)
It doesn't make much sense to set the meata keywords and meta description the same for all products/categories. This would be the case if you set it via TypoScript. Instead, you can add both (and the URL segment as well) for each product/category in the text tab of the backend.