There is no specific IMG setup required for the PreBilt barcode scanning. However you may notice that the PreBilt configuration (see section Barcode decoding functionality) is loosely based on standard SAP transactions that standard SAP Mobile Data Entry uses:
SPRO > SAP Reference IMG > Logistics Execution > Mobile Data Entry > Bar Code > Assign Bar Code Types to Warehouse Numbers
SPRO > SAP Reference IMG > Logistics Execution > Mobile Data Entry > Bar Code > Maintain Bar Code Specification
