Solution : https://service.sap.com/sap/support/notes/201982 (SAP Service marketplace login required)
Key words :
additional key words el28, meter reading date, meter reading, el401device &1 register &2, low register, prerequisites, correction
Related Notes :
| 335999 | EL28: EL401 future meter reading lower |
| 309840 | EL27 - EL29: EL401 also with balancing registers |