We have sent an agreement for signing and when we got the agreement back it says Pseudonym instead of the party's name, why?
The reason that it says "Pseudonym" is due to the person not having registered a name for their NemID certificate. The NemID then sends "Pseudonym" to us. However, NemID authentication is valid. Then it is up to each company whether to accept this signing or not.
Instructions for how the signing party can fix this can be found here (in Danish): https://www.nemid.nu/dk-da/faa_hjaelp_til_dit_nemid/administrer_nemid/navn_i_certifikat/