Hi, I think its better to explicitly specify CASLIB option in LIBNAME statement to be sure which caslib our libref is referring to. Please see below link which specifies that "Binding the CAS engine libref with the active caslib prevents the CAS engine libref from switching to a subsequently added caslib." http://documentation.sas.com/?cdcId=pgmcdc&cdcVersion=8.11&docsetId=pgmdiff&docsetTarget=n1hjajagui3sg3n1ttquns3t1i8y.htm&locale=en Cheers, Amit
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