Solution : https://service.sap.com/sap/support/notes/920272 (SAP Service marketplace login required)
Key words :
type x_massbill type e_massbill save, wrong min/max values, enter meter reading results, import parameter x_massbill, periodic meter reading, mobile asset management, sap note assistant, function module isu_mam_read_mread_limits, mater reading, function module
Related Notes :
| 943618 | MAU: Incorrect min/max values (II) |
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| 672781 | MAM for Utilities 1.0 - composite SAP Note |