https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364662#M2406 <P>My guess - you have a mismatch of types between date and datetime.&nbsp;</P> Tue, 06 Jun 2017 17:40:16 GMT Reeza 2017-06-06T17:40:16Z https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364581#M2404 <P>I am getting following error while using an exogenous variable with X12.</P><P>I cant post the code here</P><P>&nbsp;</P><P>any guesses with that may be the reason?</P><P>&nbsp;</P><P>"ERROR: Starting date for the span of the data, . , must begin on or after the starting date for user defined regression<BR />variables, JAN1960."</P> Tue, 06 Jun 2017 13:53:22 GMT https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364581#M2404 captainprice0 2017-06-06T13:53:22Z https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364652#M2405 <P>The span of any user-defined regression variables should include the span of the series to be seasonally adjusted, including backcasting or forecasting. For example, suppose that your user-defined regression variable has a span of [01JAN2017,31DEC2017], but your series has a span of [01JAN2016,31DEC2018], then the span of the data begins BEFORE the span of the regression variables.</P> Tue, 06 Jun 2017 17:30:38 GMT https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364652#M2405 TammyJackson 2017-06-06T17:30:38Z https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364662#M2406 <P>My guess - you have a mismatch of types between date and datetime.&nbsp;</P> Tue, 06 Jun 2017 17:40:16 GMT https://communities.sas.com/t5/SAS-Forecasting-and-Econometrics/unusual-error-with-proc-X12/m-p/364662#M2406 Reeza 2017-06-06T17:40:16Z