Many SAP ERP modules cause transaction data to be entered into the general ledger including:Sales and distribution (SD):records a sale then records andAccounts receivable entry( a generalledger document that indicates that a customer owes money for goods received)Materials management (MM):controls purchasing and records inventory changes. The receiptof goods from a purchase order creates anAccounts payableentry in the general ledger, whichindicates that the company has an obligation to pay for goods it has receivedFinancial accounting (FI)-manages the accounts receivable and accounts payable items createdin the SD and MM modules, respectively.Controlling (CO)-tracks the costs associated with producing productsHuman resources (HR)-manages the recruiting, hiring, compensation, termination, andseverance of employees, also benefits and payrollAsset management (AM)-manages fixed asset purchases (plant and machinery) and itsdepreciationOperational decision making problem: credit managementIndustrial credit managementGood credit management requires only so much credit be extended to customers