Please see Syntax Data Maintenance Request Submission and Processing Procedures (SDMR) for SDMR procedures.

You are able to request new service codes and/or any change to existing service codes via the following screen form. The term 'service codes' means codes for the EDIFACT syntax - e.g. for data elements 0xxx. You are able to request this for EDIFACT syntax version 3 and/or for EDIFACT syntax version 4 via the following screen form.

The following screen ONLY applies to coded service data elements - therefore you are NOT able to request other elements than service codes via the following screen - therefore you are NOT able to request e.g. new service data elements, new service composites, new service segments, new service messages or changes to existing service elements or service messages. If you want to submit such type of requests please send an e-mail to

You are also NOT able to request any new or changes to EDIFACT user elements and/or user messages via the JSWG. For those requests you have to use the regular Entry Points of UN/CEFACT.
When you have filled out the following screen (the system will perform all necessary edits and audits until the input is ok) please 'send' your input via the button at the end of the form to the JSWG. The system will also send YOU a copy of the form with your data to your e-mail address as declared in the form.

The 'JSWG reference' e.g. 'JSWG-990101-1322' is the further reference for communication. You will get a confirmation of your service code change request from the JSWG.