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MS Power Apps do not support collectionFormat Multi

I know there has been a post about this already, but I'm still asking myself why Microsoft does only support OpenAPI 2.0 (Swagger) and only half of it for that matter.


I need to use collectionFormat "Multi" in my Swagger specification but when importing a custom connector, it gives me an error since the Power platform still doesn't seem to support this format. 


This should not be a feature but a bug. Why would you advertise being able to use OpenAPI if you can only use outdated versions and select features?


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