Solution : https://service.sap.com/sap/support/notes/736491 (SAP Service marketplace login required)
Key words :
correspondence language but000-langu_corr reason, screen field bus000flds-langucorr, communication language but000-bu_langu, screen field bus000flds-langu, required entry field, terms langu-corr, attached correction instructions, existing business partner, bus000flds-langu, correspondence language
Related Notes :
724492 | BP_DIA: Correspondence language for SAP business partner |