ERROR: Bad request - please check your parameters AWS Textract

[Jelle_de_Rijke]

Is this issue perhaps connected to this one?

Accessing Other AWS Endpoints with Custom HTTP Request

I too struggle with this issue. For me the default AWS Textract Operation Analyze Receipt or Invoice returns ‘UnsupportedDocumentException’ despite document having correct format. This document in retrieved using an s3 node. So I switch to ‘Custom API Call’. Apparently this is supposed to handle to authentication as described here: I now add a http request node after the AWS Textract node. And select Authentication>Predefined Credential type> AWS credentials. But now I get the ‘MissingAuthen…