SAP Message /MAP/F102 - It is not possible to use references without active BAdI implementation

Diagnosis You have set the "Use References" (exit parameter 5USE_REF) indicator.It is only possible to use the references if an active implementationexists for the relevant BAdI (/MAP/F_REFERENCES) that is assigned to theforecast model &V1&. This is not the case. System Response The system cannot execute the planning function. Procedure Ensure that an active BAdI implementation exists for the forecast modelV1.