Here we would like to draw your attention to GJB3 transaction code in SAP. As we know it is being used in the SAP CA-JVA (Joint Venture und Production Sharing Accounting in CA) component which is coming under CA module (Cross Application).GJB3 is a transaction code used for Project type for supplemental detail in SAP.
It comes under the package GJV2.
Transaction GJB3 technical data table
|Purpose||Project type for supplemental detail|