Credit limit â This credit limit is not a total credit limit for the control area. In this way you ensure that a credit restriction will be effective for new customers, too, as soon as the customer has been created. If no credit master record has been maintained, there is no credit limit.he credit master record is automatically maintained when at least one of the following fields is maintained for the corresponding control area. 1  Via the customer master record, you can allocate every customer to a credit risk category. 2  This is used if automatic credit control is used.
light sleep. A colloquial term for the first stage of nonârapid eye movement (NREM) sleep. It is sometimes also applied to the second stage of NREM sleep.
Melatonin is a neurohormone secreted by the pineal gland in the brain and it is well known for causing and regulating sleep. Light suppresses melatonin synthesis. The primary use of melatonin as a supplement is to normalize abnormal sleep patterns.