Facebook Pixel Error - "ViewContent Event missing some deduplication parameters"

[Gunasekaran]

We are using the default Shopify integration with Facebook Pixel. Recently We are getting one error from Facebook pixel manager that "ViewContent Event missing some deduplication parameters". 

Please help to resolve this issue.

[orry]

I am getting the exact same issues. Shopify support has no answer for it which is concerning.

[Daniel-S]

Any updates on this? We have the exact same issue.