We're very pleased to announce major enhancements to the Bulk Import tool!
With these enhancements, the app can now support importing large data sets. Thousands of data points in Custom Fields (or any Shopify Metafield) can now be bulk imported. While it's not possible to force Shopify to allow us to import the fields faster than before, the Custom Fields importer is now much more stable for big data sets.
A new two-step import process first validates your data in a batch all by itself, checking that the data is valid. This means that your imports are far more likely to be successful without waiting for the entire import to run and get stuck. When we find a problem during validation we now tell you what the problems are that we found so you can correct them. Watch out for bad handles though, we can't check that handles are good during validation and bad handles cause the only known problems with the new bulk import system.
Another new feature with the new bulk import system is that it can now handle starting and stopping imports! This is great if you're running a long import and accidentally navigate away from the page or have to shut down your computer. Come back when you're ready and the import will pick up where you left off.