Most upgrades require large quantities of materials and other items. Before these items can be used for upgrades, they must be donated to the guild's treasury. To donate an item, open the treasury interface by speaking with a treasurer at your guild hall or at the Guild Initiative Headquarters. Only items needed by your guild to purchase available upgrades will be shown for you to donate. Drag them to your contribution and click "Confirm" to finalize the donation. Note that once an item is donated, it cannot be taken back or used for any purpose other than purchasing upgrades.
For your convenience, the treasury interface is also available from the upgrade-purchase window at the various guild proprietors.
Most upgrades require large quantities of materials and other items. Before these items can be used for upgrades, they must be donated to the guild's treasury. To donate an item, open the treasury interface by speaking with a treasurer at your guild hall or at the Guild Initiative Headquarters. Only items needed by your guild to purchase available upgrades will be shown for you to donate. Drag them to your contribution and click "Confirm" to finalize the donation. Note that once an item is donated, it cannot be taken back or used for any purpose other than purchasing upgrades.
For your convenience, the treasury interface is also available from the upgrade-purchase window at the various guild proprietors. · Guild Wars 2 Database