It depends on whether the matter is important or urgent. Non-important and non-urgent matters will be signed only when the leaders come back. It is generally not recommended to urge leaders, and leaders will be unhappy. If it is important and urgent, they can call and send text messages to the leaders for instructions. Leaders generally know this kind of thing and will call or authorize the leaders at the next lower level to sign on their behalf.

Hidden rules of leaders' signature:

If the leader's signature is a horizontal sign, it means "can be shelved"; If it is a vertical sign, it is necessary to "do the last"; If there is a fixed period after "agreement", it means that this matter must be done "wholeheartedly"; If you click a hollow period, you can't 100% do it.