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Advocate I
Advocate I

Unable to create custom connector in Power Automate with binary parameter



I have created an azure function that takes as input a binary file and I want to create a custom connector to use in Power Automate that use as parameter the file content, so the I can feed the connector directly with the output of other actions (eg. SharePoint Get File Content).

When I configure the custom connector with a property with type=string e format=binary, the connector fails to update with the following error:


A schema with type/format 'string/binary' can only be at the top level of a body or formData parameter. '


The property is in the top level of the body parameter so the error message in clearly misleading. Here is a chunk of the swagger code:




Moreover, I've tried to create the same exact connector (by coping the swagger definition) in logic apps and it works without any issue, thus making the issue even more hard to understand.


Is this a problem / limitation of the connectors in the Power Automate?

Please advise.


Thanks in advance.


Memorable Member
Memorable Member

Any updates on this one? I'm facing the same problem

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