Transaction Register
During translation, a translation error is returned when duplicate data is identified. You can use the transaction register to check for duplicate data, such as duplicate document reference numbers. Checking for duplicate data is invoked during translation by including the Transaction Register Update and Select standard rules in your translation map.
Note: To preserve sequence checking in EDIFACT documents,
you must use a different global control number for each envelope in
a document. This allows multiple threads to process correctly without
incrementing the global control number out of sequence. System generated
global control numbers are not affected.