The macro function %SYSFUNC works only with Base SAS functions*, functions that are created with PROC FCMP**, or functions that are created by SAS Toolkit. %SYSFUNC does not work with functions that are found only in SAS^® Component Language (SCL). An attempt to use an SCL function with %SYSFUNC produces the following error:

ERROR: The [function-name] function referenced in the %SYSFUNC or 
       %QSYSFUNC macro function is not found.

If the SCL function does not have a DATA step equivalent, it cannot be used with %SYSFUNC.

* The following BASE SAS functions cannot be used with %SYSFUNC: ALLCOMB, ALLPERM, DIF, DIM HBOUND, IORCMSG, INPUT, LAG, LBOUND LEXCOMB, LEXCOMBI, LEXPERK, LEXPERM, MISSING, PUT, RESOLVE, SYMGET. Note: Instead of INPUT and PUT, which are not available with %SYSFUNC and %QSYSFUNC, use INPUTN, INPUTC, PUTN, and PUTC.

** For information about %SYSFUNC and PROC FCMP, see SAS Note 40702, "Using functions created with PROC FCMP within the %SYSFUNC macro function."

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