Different types of credit checks

Credit Check can be :
1) Simple Credit Check
2) Automatic Credit Control

Automatic Credit Control can be at various levels :
1) Order
2) Delivery
3) Goods Issue

Automatic Credit Check is of many types :
1) Static
2) Dynamic
3) MaximumDocument Value
4) Maximum Open Items in percentage
5) Oldest Open Item in number of days
6) Crtitical fields change
7) Highest dunning level, etc.
You can create more.

Credit Check happens only in SD module, never in FI. Because the stage of the check is in the sales cycle, which exists in SD. FI guys will check the credit master sheets of the customer, the MIS, the analysis etc, review the credit limits of customers. But the check will happen only in SD, while creating order, delivery or doing the goods issue.