Solution : https://service.sap.com/sap/support/notes/494711 (SAP Service marketplace login required)
Key words :
METER READINGS EVENT OIIGMME OIIGMMES, meter events missing afterupgrade to service pack 29 or 30.
Related Notes :
| 512081 | IS-OIL / IS-MINE: CRTs 29-30 for SAP_APPL |
| 387861 | Order of IS-OIL / IS-MINE 4.6C Notes (SAP_APPL) |