Field help (ENVAMTRES) 

Budgeted amount of the reserved envelopes, ex-tax. Optional zone that can be entered when creating the envelope. The reserve is included in the envelope, this amount must be strictely lower than the envelope amount. The envelope amount deducted from the reserve determines the available amount that can be divided in budgets by FY. This reserve can be used throughout the envelope's life, before or after approval The lower the envelope reserve amount, the higher the left-to-distribute amount. The higher the envelope reserve amount, the lower the left-to-distribute amount. After approval, it is limited to the available amount, left-to-distribute in envelope''s budgets.