SAP ISU Schedule Records creation

Hi
Experts,

We are now approaching a phase in our project where we need to create NEW Schedule Records for coming years. SAP Default setting restricts upper limit for Schedule record creation as seven years but I know that we can over-ride that also.

My question is that

• Does anyone has created schedule records in their project for more than seven years in one go & have you faced any problems.
• What is rationale behind SAP standard limit of seven Years or what sort of problems can be expected if we over-ride the SAP limit of Seven years.

Thanks,

Manish