As Per the Documentation Of SP API Feeds First We Tried the Create Feed Document API Call and Got the Response For Encryption Details and URL To Upload Encrypted Data on it.
But After Encrypting the Order Fulfillment XML Data we are Trying to Upload that File on Given URL using Postman.
We are Performing this Operation as per the Documentation with PUT Call Method, Adding Encrypted XML File and Header "Content-Type" as "application/xml; charset=UTF-8".
Now the Issue which we are Facing is -
<?xml version="1.0" encoding="UTF-8"?>
<Message>Missing required header for this request: x-amz-content-sha256</Message>
Please, anyone Support us on this Issue asap it would be a great help for us.