Solution : https://service.sap.com/sap/support/notes/836889 (SAP Service marketplace login required)
Key words :
terms /eaca/gldc reason, gl document number intervals, enter /eaca/gldc, document number gaps, start transaction snro, choose edit -> set-, gl document numbers, extended buffering = loc, buffering distributes packages, assigned year-dependent
Related Notes :
691916 | Performance of GL document number assignment |
504875 | Buffering number ranges |