Requirement to put a maximum value on a s/c and p/o

Hello

I was wondering if someone could help point me in the right direction?

We currently have a maximum value when raising shopping carts and amending purchase orders and approval within SRM of £10million. If you try to raise a shopping cart or amend a purchase order over this value then you get the message 'Error:Order has exceeded max.approval limit.Contact System Administrator'

I have been asked by the business to decrease this value to £1million to restrict the spending within our authority.

I cannot find how to do this and I am now wondering if anyone on here can point me in the right direction.

We are currently using Extended Classic Scenario on SRM version 5.5.

Any help would be appreciated.

Kind regards

Michelle