https://communities.sas.com/t5/SAS-Procedures/Conditionally-create-a-monthly-data-set/m-p/399809#M66668 Fri, 29 Sep 2017 19:15:27 GMT Rasmusma1995 2017-09-29T19:15:27Z https://communities.sas.com/t5/SAS-Procedures/Conditionally-create-a-monthly-data-set/m-p/399809#M66668 Fri, 29 Sep 2017 19:15:27 GMT https://communities.sas.com/t5/SAS-Procedures/Conditionally-create-a-monthly-data-set/m-p/399809#M66668 Rasmusma1995 2017-09-29T19:15:27Z https://communities.sas.com/t5/SAS-Procedures/Conditionally-create-a-monthly-data-set/m-p/399829#M66670 Welcome to the SAS forums. <BR /><BR />Unfortunately your question and code are not clear. Or at least what you're looking for isn't clear. Can you please clarify what exactly you need help with. <BR /><BR />I would also strongly suggest looking at the SAS Macro Appendix which has several sample macros, including one to check and see if a data set exists. That may be a good starting point for your solution. <BR /><BR />Note: I've modified your subject line to make it more descriptive and attempted to format your code, but it's incomplete and buggy - you have incorrectly formed comments so it's hard to read or understand. And a big suggestion that will help you - include comments. Always. It tells both future you and others what you're attempting to accomplish or expecting. Fri, 29 Sep 2017 15:29:12 GMT https://communities.sas.com/t5/SAS-Procedures/Conditionally-create-a-monthly-data-set/m-p/399829#M66670 Reeza 2017-09-29T15:29:12Z