align country codes with eForms and ESPD?

When calling the eCertis API to retrieve evidences for a given country, the request must use a two letter country code / id to specify the national entity (cf. https://ec.europa.eu/growth/tools-databases/ecertisrest/list/nationalentitie).

However, in our national platform we use three letter country codes (e.g. BEL instead of BE), since these are also used in the corresponding codelists of eForms and ESPD

Making a call to eCertis thus requires an additional mapping on our side. This could be avoided if eCertis were to switch to the three letter variant (or at least accept both codetypes).