This is a heads up for all of you that have implemented SP 16 for SLL-NFE (note that this will also happen for SP 17).
After the upgrade you can have the following issue:
If you received a rejection with code 573 (duplicity of event) you request a Status Check for the Event for layout 2.00 and the status is never updated. If you check the response in SXMB_MONI you will see the message with error ‘CX_SY_CREATE_DATA_ERROR’.
This was fixed with Sap Note 2020893 – Problem with NF-e Status Check for Events for 2.00 NF-es.
So, if you have this scenario, implement the note and then reprocess the message in SXMB_MONI.
In fact, I strongly suggest you to apply this SAP Note before having any issue that couldn’t impact your business.