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Inventory Operations— min readUpdated Jul 13, 2026

How to Create Synsets (SKU Substitutes) using a CSV File

  1. Go to your Inventory tab.
  • Click SKU Substitutions.
  • Select the Sets (Synsets) tab.
  • Click  Upload Synset.
  • Use the browse button to upload your CSV file. After you have selected the desired file, click Upload to finish the upload.

Here is an example of the format needed for a CSV upload. For multiple SKU synsets, add a new line for each SKU. Use the same synset and description data for each line as shown below.

Frequently Asked Questions

Where do I find the SKU Substitutions option in Fulfyld?
Go to your Inventory tab and click on SKU Substitutions to access the feature.
What is a Synset in Fulfyld?
A Synset is a set of SKU substitutes that allows you to group alternative or equivalent SKUs together for inventory management purposes.
How do I upload a Synset using a CSV file?
Navigate to the Sets (Synsets) tab within SKU Substitutions, then click the Upload Synset button to upload your CSV file.
What tab should I select to create Synsets?
Select the Sets (Synsets) tab within the SKU Substitutions section to create and manage your synsets.

About the author

BM
Director of Implementation, Fulfyld

Brett McCleary is Director of Implementation at Fulfyld, where he leads client onboarding and the integrations that connect brands' stores, marketplaces, and systems to Fulfyld's fulfillment operation.

More from Brett McCleary →

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