Help common to the single and mass issue processings. The asset issue amount is automatically calculated according to the "Sales amount type". It can corresponds to: - the asset's net value on the plan selected by the user. This amount can be modified. - an amount equal to 0 if the "Sales amount type" has "No amount" for value. It can be modified. - the sales amount entered on the setups tab, in the case of a unitary issue (without component assets issue) - the result of the sales amount distribution entered on the setups tab, on each asset submitted to the issue. This amount can be modified. Modifying an issue amount leads to a new VAT amount and the added value or value loss calculations for each asset depreciation plan. If the components and/or additional components are not issued and are detached, this field is empty.