I have a SAS program which imports these large JSON files which works 99.9% of the time but once a blue moon I get a JSON file which throws up the error message: 39 filename map2 temp; 40 libname json2 JSON map=map2 automap=reuse ; NOTE: JSON data is only read once. To read the JSON again, reassign the JSON LIBNAME. ERROR: Invalid JSON in input near line 15837 column 6649: Some code points did not transcode. ERROR: Error in the LIBNAME statement. Its not very realistic to open and interrogate the file as its to large. The best I could find was to change the encoding to be UFT-8, which SAS is already set to.    My code is below. Any suggestions as to how to investigate or solve the issue please do put them as I'm at a loss.  Cheers     filename json "&jdir.\&Jfile.&uat..json" ; filename json2 temp lrecl=250000; data _null_; infile json end=eof lrecl=250000; file json2 ; input ; if _n_=1 then put '[' @; else put ',' @; put _infile_; if eof then put ']'; run; filename map2 temp; libname json2 JSON map=map2 automap=reuse ;     ... View more