Import product variation function allows you to import the variation product of a predefined product in case you create a product with manual variation outside the management screen but cannot create it (this is the case you declare properties from variation, and from these properties, too many variation products are generated, and the system cannot afford to generate all these variations, so the import function below must be used). Note: If your excel file has many lines of data, we recommend you to split the file into smaller files (maybe <200 lines each), to ensure the file is successfully imported into the system.