When loading master data for a material, you want to look at the new values...

When you define the data transfer process, select the "Get All New Data Request by Request" setting.

When you define the attributes of the material characteristic, select the “Time Dependent’ setting.

When you define the material characteristic, select the “Enhanced Master data update” setting.

When you define the data transfer process, select the “Set manually” setting for “Overall status of request”.