Hi Jörg,
From the screenshot provided by you, it seems that the ECCN number has not been maintained for the used Numbering scheme DEALN. Hence, please get the same maintained through the below path for Legal Regulation DEALN and Re-Try the same.
- GTS Area menu/Cockpit(/sapsll/menu_legal)->Compliance Management->Classification/master data->Maintain Export control classification numbers (on the Top Right Side).
Else if you want to use a new numbering scheme allover for the legal Regulation AWV, then change to the required one through the below path.
- SPRO-->Global trade services-->General Settings-->Numbering Schemes-->Assign Numbering schemes to legal regulation of the application areas- Assign Scheme for numbers in legal control
For the above case, please note that the latest Numbering scheme should have been defined earlier in the system and the concerned settings should have the validity. After the above activity, you need to assign required ECCN number to the new Numbering scheme as defined in the first step or in the starting.
I hope this will help you.
Regards,
Aman