Solution : https://service.sap.com/sap/support/notes/1559024 (SAP Service marketplace login required)
Key words :
integration model apo interface char 2then maintain, mandt client clnt 3usmd_model segment number, characters 1output length 1value range, manual message enhancements call transaction se91, initial values 'x' - field 'adjust_status', initial values 'x' - field 'log_tab_name', usmd_adjust_staging_<client>_<data model>, change requestdata type domain usmd_adj_statussave, maintenance type 'display/maintenance allowed, initial values 'x' - field 'usmd_model'
Related Notes :
1706545 | |
1591280 | Manual scheduling of staging data adjustment |