Here we would like to draw your attention to OAD4 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).OAD4 is a transaction code used for SAP ArchiveLink: Bar code types in SAP.
It comes under the package SAOP.
Transaction OAD4 technical data table
|Purpose||SAP ArchiveLink: Bar code types|