I am having this issue as well. Anyone get answers?
Topic summary
Main issue: After integrating Shopify with Facebook Shop (Commerce Manager), only one product image appears per product on Facebook, despite multiple images in Shopify. This reduces engagement and sales.
Attempts and constraints: Manually adding images in Facebook fails and triggers a warning that Shopify-managed items will overwrite manual edits, directing changes back to Shopify. All images meet Facebook requirements, so it’s not a compliance issue.
Community reports: Multiple merchants confirm the same behavior. One post alluded to a possible workaround, but details/link are not available in the thread.
Latest update: According to Shopify support (as relayed by a participant), this is expected behavior for products with variants (e.g., size/color options). For such products, Shopify only sends one image to Facebook, limiting the image gallery shown.
Status: No confirmed solution in the thread. The limitation appears to be by design when variants are present, and manual edits in Facebook are overridden by Shopify sync. The discussion remains open with unresolved requests for a fix or viable workaround.