Despite the postponement of the User Acceptance Test (GAT), we highly recommend starting preparations for it. We also advise you to connect to the test environment in the central hub as of 5 February. This will allow you to check your access and approach the GAT with complete peace of mind.
Difficulties to connect? Use TLS 1.2
The Transport Layer Security (TLS) protocol provides communication security between systems. Nexus uses TLS version 1.2 to secure the communication between the market party and Nexus. This Nexus security setting for AS2 is in accordance with issue TC024. Nexus uses mutual TLS authentication: both market party and Nexus need to authenticate each other using certificates.