When the SFM is heavily loaded (lot of rows/columns), you get an undefined error because Salesforce times out when ServiceMax tries to save the data. This is becoming more and more common use case and the only work around is creating custom VF pages. Can you break the rows down into smaller chunks and send it to Salesforce?
It is forcing us to develop custom VFs
What is the underlying problem do you intend to solve with this idea?
How is the problem being addressed today, if at all?