Currently, there isn't away to use the membership functional area if your GL uses revenue category as a building block. Blackbaud CRM doesn't currently have a way to add a revenue category at the point of creation of a membership program or at the payment level. If your organization uses revenue category as a building block for your GL you wont be able to use this area of the system. We need the ability to add revenue category either at the point of creation of a membership program or at the payment level.