cmi.exit scorm 2004 4th edition

Does "cmi.exit" value shall be saved between learner attempts? Or just we keep it value in a specific attempt?

• I am building a scorm 2004 LMS

The value of cmi.exit is not saved from one learner attempt to the next. It shall be set to "" at the beginning of each learner attempt.

Actually, the value of cmi.exit is set to "" at the beginning of each learner session, and one or more learner sessions form a learner attempt.

Source: SCORM 2004 4th edition Runtime Environment Book, available from adlnet.gov (download the documentation suite).