Credit limits-Credit management

[navson]

Dear All,
i have a guarantor (whom we treated as a customer) he will take the gurantee of customers he will pay in advance to the company and in case any customer dfaults then his defaulted amount will be deducted from gurantor's deposit.If the gurantor takes the guarantee of 1 million how will we create credit limits.On the other hand credit management is also being implemented we also want when customers' limit cross credit application in OCM also created.
Regards
Naveed