We are getting an Error message while trying to fetch the Order details for a particular Order from the ECC system through a portal which is designed using SAP WebDynpro.
This particular Order is huge in size having more than 700 line items, 100 delivery lines, more than 50 invoices.
After around 128 seconds of processing the error is populated as "Bad Gateway".
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /sap/bc/webdynpro/SAP/ZWD_ORDER;sap-ext-sid=xy23OfZmLipTVNdaXC79He--Y5JQ2zV7Apl6Of99Kvc8Jk--.
Reason: Error reading from remote server
This issue is happening for all Order which are as huge as the above mentioned Order and the portal is unable to fetch the details from the ECC system.
Can someone help Urgently?