Editing Dimension Metafields
With Shopify you have the ability to create metafield definitions for dimensions like weight, length and volume.
You can use Ablestar Bulk Product Editor to edit these values. Accepted units of measurement include:
- Weights: g, oz, kg, lb
- Lengths: mm, cm, m, in, ft, yd
- Volumes: ml, cl, l, m3, us fl oz, pt, qt, us gal, imp fl oz, imp pt, imp qt, imp gal
Definitions are now case sensitive. Metafields defined as custom.Fabric_Type will be set as custom.Fabric_Type. If you have existing metafields that were created with the wrong case, they should be exported, deleted, and recreated with the correct case.
Choose if you prefer the 'In-App Edit' or 'Spreadsheet' method:
1. In-App Edits
There are two options available to bulk edit dimensions:
- Set to Value
- Delete Metafield

Setting the Dimension field also includes a required unit of measurement selection.
2. Spreadsheet Edits
Spreadsheet formatting
Exported dimensions will now download without JSON formatting. This allows you to edit dimension values more easily and then re-import as a bulk spreadsheet edit.
Prep your spreadsheet with a variant-level identifier in the first column and the action items (including a mandatory unit of measurement) in the second and subsequent columns, similar to:

The unit is not case sensitive, decimals are valid, and any space is optional, so all variations should be recognized. You can use short units like cm and mm or full names like centimeters and inches. The JSON format that Matrixify uses still works too, so your older spreadsheets will import the same as before.
Upload the spreadsheet edit option, confirm the mapped columns and preview and click to Run edits. Undo changes if needed to start over.
✅ Tips and Troubleshooting
- Setting any Dimension field also includes a required unit of measurement selection
- Currently, there is no way to set a default unit type for an entire metafield definition
(04.125)