Solution : https://service.sap.com/sap/support/notes/65738 (SAP Service marketplace login required)
Key words :
symptom runtime error convert_no_number occurs, additional key words mc25, generating update rules, wrong 'field = formula_value_objekt', assignment 'field = formula_value', data types 'f', program error, data transport, numeric format, form routine
Related Notes :
204130 | SIS update: Collective note |
161138 | LIS: Update by data transfer: null values |
93434 | Update rules from Release 2.X - change in 3.X |
77104 | Update rules - formula - data transport |