What is the functionality of the update button in the VAOl transaction at item level of conditions? | SAP-SD

 The update button is to update the pricing of products, even though the System performs an automatic update for it. This button is mainly used when an organization makes changes in the pricing conditions, such as taxes, discounts. By clicking the update button and selecting an appropriate condition that appears after clicking, the effect of change in the pricing conditions is depicted in the existing Sales order.