Diagnosis
The start of the special offer period has already passed, the enddate has not however been reached.
You can no longer change the date of the promotion start, listingstart and start of purchase price conditions, because subsequentprocessing has already been carried out for the promotion.

Procedure
You can carry out subsequent processing. You should however takeinto account that validity periods for listing, prices, allocationtables etc. are copied from the promotion and therefore cover time inthe past, although they no longer take effect there.As a result, information can even be falsified for analyses.