Why Importing data through Template is dangerous in MSD axapta

Mostly ERP Does not allow to change posted records in the system but by importing data through template posted data can be change that is the main reason Importing data through template does comes under best practices.

Lot of effects goes to tables during manual entry in the system but if you use templates then that effect may loss or you need to do extra coding on import criteria to maintain effects.

There may be data redundancy through templates. So better way if user do manual entries in the ERP System that is more secure to save data for long time and its also good to get occuracy in the report.