ESS Launchpad upload custom background image

Hi All,

We want to upload company Logo into ESS MSS Launchpad images inaddition to the standard images.

I followed the post http://scn.sap.com/thread/3564684 and the instructions by siddarth. However I am getting below error message.

Also I tried adding the client:

http:// /sap/bc/ui5_ui5/sap/ARSRVC_suite_pb/main.html?page=%3CPageId%3E&scope=CUST&sap-client=340

Still same error message

Kindly help with your inputs

Thanks

Gita