Here we would like to draw your attention to SPH3 transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).SPH3 is a transaction code used for Maintain incoming number change in SAP.
It comes under the package SPHO.
Transaction SPH3 technical data table
|Purpose||Maintain incoming number change|