Hi Dling, Thank you very much for this very useful clarification. Best regards Fernando ... View more

Hi Fernando, Is your SAS program running on a UNIX server?  If so then CUSTOMER may be an environment variable and $CUSTOMER will be replaced with its value, hopefully the path to a directory containing SAS tables.  For example on my server the following assigns a library to my home directory because HOME is a UNIX environment variable that points to my home directory /home/paul for example: libname home '$HOME'; I also get to see what $HOME was in the SAS log's NOTE: message when the code is submitted.   Another way to determine the value of an environment variable is to use %sysget like so: %put %sysget(CUSTOMER); Cheers Paul ... View more