Hello,    I am working on one challenge and I am unable to resolve the error message.    I have file1 with customer info:   cust#;date 1234;20200104 1234;20200105 1234;20200106 1233;20200204 1233;20200221 1233;20200213 1222;20200520 1222;20200522 1222;20200523 I have another file with a script: ftp <server> user pwd cd /temp/folder/ put filename_cust_dyymmdd filename_cust_dyymmdd.txt for each value in file1, I need to dynamically generate individual FTP scripts by replacing cust with cust# and yymmdd with date.    I used array to load the script as shown in below code: DATA script1 ; FORMAT LI1-LI4 $100.; RETAIN LI1-LI4 ; ARRAY LI{150} $ ; INFILE script1 TRUNCOVER END=EOF; INPUT @001 LI01 $100. ; I = _N_; LI{I} = LI01; IF EOF THEN OUTPUT ; RUN; and then    data _null_ array li{4} $; format line $100. ; set file1; /* cust# and date */ if _n_ = 1 then set script1; for i = 1 to 4; line = li{i}; if i = 4 then do; string update/replace using substr end; @001 put line $100.; end; run; WARNING: Multiple lengths were specified for the variable LI1 by input data set(s). This can cause truncation of data. I am able to get multiple scripts as per file1 but values are truncated (only first 8 bytes are written) and not as expected.    can someone help why I am getting truncation warning.    ... View more