Logo File Requirements
Before uploading, make sure your logo meets these specifications:
Note on logo dimensions: The default logo only requires a minimum of 512 pixels wide — it does not need to be square. The square logo, however, must meet a minimum of 512×512px. Upload them as separate files using the two distinct upload areas in the Brand assets section.
Theme compatibility: Brand assets automatically sync with compatible themes. However, they are not supported by vintage Shopify themes or some custom-built themes. If your brand logo is not populating your theme automatically after upload, you may need to connect it manually. In the theme editor, go to Theme settings > Logo, click the Connect dynamic source button, select your brand asset, and click Connect. Stores on custom themes may need to work with a Shopify Partner to enable full Brand API compatibility.
You'll upload two versions: a default logo (can be rectangular or horizontal) and a square logo (must be square dimensions).