I have the same problem. I am trying to publish a feature layer with its related table to our organization sandbox (enterprise portal) using the 'Publish Web Layer' option in ARCGIS Pro 2.4, but the relationship is not working in the portal. Note that I tried all above suggested solutions (e.g. publishing with/without a relationship class) and not of them worked. I would be pleased if you could give me a solution for this problem. I have a project deadline to meet and this issue has been delaying my project for weeks now. Thank you, Babak
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