Stack error using SUM Tool

Hi,

We are trying to update the SP stack for our CRM Java system (CRM 7.0 EHP3). After generating a stack (SPS04) via maintenance optimizer and using with SUM, we encounter the following error:

Error: The system description in the provided stack.xml does not match

your system. In the stack, the described release 740 is different from

release 731, which is detected in your system. Generate a new stack.xml

that matches your system

We are indeed on 740 release for Basis, and stack too generated for the same, but SUM tool sees a different version 731. Any advice on this would be helpful.

Regards,

Naga