Field help (IASETRNOT) 

Enter the Ex. tax input value of the financial asset for IAS/IFRS. This value is expressed in the currency of the IAS/IFRS context.
After creation, this value cannot be directly modified on this screen. Click Update from the Action panel if needed.
If the asset is posted to an IAS/IFRS account which nature is Charge, no amount can be entered.
If the asset is constructed from the capitalization of expenses, the IAS/IFRS input value, by default, is based on the PCG input value, converted into the currency of the IAS/IFRS context.
If the asset is created from the capitalisation of expenses, this value can be revised by adding new expenses or the withdrawal of expenses already linked.