diff --git a/base/mf_existfeature.sas b/base/mf_existfeature.sas
index 23bad62..ecca91a 100644
--- a/base/mf_existfeature.sas
+++ b/base/mf_existfeature.sas
@@ -5,7 +5,7 @@
     Run without arguments to see a list of detectable features.
     Note - this list is based on known versions of SAS rather than
     actual feature detection, as that is tricky / impossible to do
-    without generating errors in most cases.
+    without generating errs in most cases.
 
         %put %mf_existfeature(PROCLUA);
 
diff --git a/base/mf_getattrc.sas b/base/mf_getattrc.sas
index b1c7cc1..4e0fd51 100644
--- a/base/mf_getattrc.sas
+++ b/base/mf_getattrc.sas
@@ -10,7 +10,7 @@
   @param attr full list in [documentation](
     https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000147794.htm)
   @return output returns result of the attrc value supplied, or -1 and log
-    message if error.
+    message if err.
 
   @version 9.2
   @author Allan Bowe
diff --git a/base/mf_getattrn.sas b/base/mf_getattrn.sas
index f2ca561..fdb47a7 100755
--- a/base/mf_getattrn.sas
+++ b/base/mf_getattrn.sas
@@ -10,7 +10,7 @@
   @param attr Common values are NLOBS and NVARS, full list in [documentation](
   http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000212040.htm)
   @return output returns result of the attrn value supplied, or -1 and log
-    message if error.
+    message if err.
 
   @version 9.2
   @author Allan Bowe
diff --git a/base/mf_mkdir.sas b/base/mf_mkdir.sas
index 763271b..464b468 100755
--- a/base/mf_mkdir.sas
+++ b/base/mf_mkdir.sas
@@ -51,7 +51,7 @@ Usage:
     %end;
 
     /*
-      Now create the directory.  Complain loudly of any errors.
+      Now create the directory.  Complain loudly of any errs.
     */
 
     %let dname = %sysfunc(dcreate(&child, &parent));
diff --git a/base/mf_nobs.sas b/base/mf_nobs.sas
index c72660f..0bdc29b 100755
--- a/base/mf_nobs.sas
+++ b/base/mf_nobs.sas
@@ -12,7 +12,7 @@
   @param libds library.dataset
 
   @return output returns result of the attrn value supplied, or log message
-    if error.
+    if err.
 
 
   @version 9.2
diff --git a/base/mp_copyfolder.sas b/base/mp_copyfolder.sas
index 0800857..d52fa6b 100644
--- a/base/mp_copyfolder.sas
+++ b/base/mp_copyfolder.sas
@@ -55,6 +55,8 @@
   /* create folders and copy content */
   data _null_;
     set work.&tempds;
+    length msg $256;
+    call missing(msg);
     if _n_ = 1 then dpos+sum(length(directory),2);
     filepath2="&target/"!!substr(filepath,dpos);
     if file_or_folder='folder' then call execute('%mf_mkdir('!!filepath2!!')');
@@ -63,9 +65,9 @@
       rc1=filename(fref1,filepath,'disk','recfm=n');
       rc2=filename(fref2,filepath2,'disk','recfm=n');
       if fcopy(fref1,fref2) ne 0 then do;
-        sysmsg=sysmsg();
+        msg=sysmsg();
         putlog "%str(ERR)OR: Unable to copy " filepath " to " filepath2;
-        putlog sysmg=;
+        putlog msg=;
       end;
     end;
     rc=filename(fref1);
diff --git a/base/mp_ds2fmtds.sas b/base/mp_ds2fmtds.sas
index 9b810a6..f5ad608 100644
--- a/base/mp_ds2fmtds.sas
+++ b/base/mp_ds2fmtds.sas
@@ -1,16 +1,22 @@
 /**
   @file
-  @brief Converts every value in a dataset to it's formatted value
+  @brief Converts every value in a dataset to formatted value
   @details Converts every value to it's formatted value.  All variables will
-  become character, and will be in the same order.
+  become character, and will be in the same order as the original dataset.
+
+  Lengths will be adjusted according to the format lengths, where applicable.
 
   Usage:
 
       %mp_ds2fmtds(sashelp.cars,work.cars)
+      %mp_ds2fmtds(sashelp.vallopt,vw_vallopt)
 
   @param [in] libds The library.dataset to be converted
   @param [out] outds The dataset to create.
 
+  <h4> SAS Macros </h4>
+  @li mf_existds.sas
+
   <h4> Related Macros <h4>
   @li mp_jsonout.sas
 
@@ -22,8 +28,9 @@
 )/*/STORE SOURCE*/;
 
 /* validations */
-%if not %sysfunc(exist(&libds)) %then %do;
-  %put %str(WARN)ING:  &libds does not exist;
+
+%if not %mf_existds(libds=&libds) %then %do;
+  %put %str(WARN)ING:  &libds does not exist as either a VIEW or DATASET;
   %return;
 %end;
 %if %index(&libds,.)=0 %then %let libds=WORK.&libds;
diff --git a/base/mp_ds2inserts.sas b/base/mp_ds2inserts.sas
index 073d8b6..342ca95 100644
--- a/base/mp_ds2inserts.sas
+++ b/base/mp_ds2inserts.sas
@@ -116,6 +116,7 @@ data _null_;
     if _n_>&maxobs then stop;
   %end;
   length _____str $32767;
+  call missing(_____str);
   format _numeric_ best.;
   format _character_ ;
   %local i comma var vtype vfmt;
diff --git a/base/mp_filtervalidate.sas b/base/mp_filtervalidate.sas
index 7544291..3dd89a1 100644
--- a/base/mp_filtervalidate.sas
+++ b/base/mp_filtervalidate.sas
@@ -33,8 +33,8 @@
   @param [in] targetds The target dataset against which to verify the query
   @param [out] abort= (YES) If YES will call mp_abort.sas on any exceptions
   @param [out] outds= (work.mp_filtervalidate) Output dataset containing the
-  error / warning message, if one exists.  If this table contains any rows,
-  there are problems!
+    err / warning message, if one exists.  If this table contains any rows,
+    there are problems!
 
   <h4> SAS Macros </h4>
   @li mf_getuniquefileref.sas
diff --git a/base/mp_getconstraints.sas b/base/mp_getconstraints.sas
index 57087b8..78dfcd3 100644
--- a/base/mp_getconstraints.sas
+++ b/base/mp_getconstraints.sas
@@ -48,17 +48,17 @@
 %let vw=%mf_getuniquename(prefix=mp_getconstraints_vw_);
 data &vw /view=&vw;
   set sashelp.vcncolu;
-  where TABLE_CATALOG="&lib";
+  where table_catalog="&lib";
 
   /* use retain approach to reset the constraint order with each constraint */
   length tmp $1000;
   retain tmp;
   drop tmp;
-  if tmp ne catx('|',libref,table_name,constraint_type,constraint_name) then do;
+  if tmp ne catx('|',table_catalog,table_name,constraint_name) then do;
     constraint_order=1;
   end;
   else constraint_order+1;
-  tmp=catx('|',libref, table_name, constraint_type,constraint_name);
+  tmp=catx('|',table_catalog, table_name,constraint_name);
 run;
 
 /* must use SQL as proc datasets does not support length changes */
diff --git a/base/mp_getddl.sas b/base/mp_getddl.sas
index 5ce3277..b60f522 100644
--- a/base/mp_getddl.sas
+++ b/base/mp_getddl.sas
@@ -139,7 +139,7 @@ run;
     %let curds=%scan(&dsnlist,&x);
     data _null_;
       file &fref mod;
-      length nm lab $1024 typ $20;
+      length lab $1024 typ $20;
       set &colinfo (where=(upcase(memname)="&curds")) end=last;
 
       if _n_=1 then do;
diff --git a/base/mp_init.sas b/base/mp_init.sas
index 09cae00..65592dd 100644
--- a/base/mp_init.sas
+++ b/base/mp_init.sas
@@ -49,7 +49,7 @@
     autocorrect             /* disallow mis-spelled procedure names           */
     compress=CHAR           /* default is none so ensure we have something!   */
     datastmtchk=ALLKEYWORDS /* protection from overwriting input datasets     */
-    errorcheck=STRICT       /* catch errs in libname/filename statements      */
+    %str(err)orcheck=STRICT /* catch errs in libname/filename statements      */
     fmterr                  /* ensure err when a format cannot be found       */
     mergenoby=%str(ERR)OR   /* throw err when a merge has no BY variables     */
     missing=.               /* changing this can cause hard to detect errs    */
diff --git a/base/mp_jsonout.sas b/base/mp_jsonout.sas
index ca65ee8..226b536 100644
--- a/base/mp_jsonout.sas
+++ b/base/mp_jsonout.sas
@@ -63,7 +63,7 @@
 %if &action=OPEN %then %do;
   options nobomfile;
   data _null_;file &jref encoding='utf-8';
-    put '{"START_DTTM" : "' "%sysfunc(datetime(),datetime20.3)" '"';
+    put '{"PROCESSED_DTTM" : "' "%sysfunc(datetime(),E8601DT26.6)" '"';
   run;
 %end;
 %else %if (&action=ARR or &action=OBJ) %then %do;
diff --git a/base/mp_lockanytable.sas b/base/mp_lockanytable.sas
index e4dcab6..ea91ca7 100644
--- a/base/mp_lockanytable.sas
+++ b/base/mp_lockanytable.sas
@@ -239,7 +239,7 @@ run;
   %let abortme=1;
 %end;
 
-/* catch errors - mp_abort must be called outside of a logic block */
+/* catch errs - mp_abort must be called outside of a logic block */
 %mp_abort(iftrue=(&abortme=1),
   msg=%superq(msg),
   mac=&sysmacroname
diff --git a/tests/crossplatform/mp_ds2fmtds.test.sas b/tests/crossplatform/mp_ds2fmtds.test.sas
index 0d6de69..e352150 100644
--- a/tests/crossplatform/mp_ds2fmtds.test.sas
+++ b/tests/crossplatform/mp_ds2fmtds.test.sas
@@ -15,10 +15,12 @@ filename inc temp;
 data _null_;
   set work.test;
   file inc;
-  line=cats('%mp_ds2fmtds(sashelp.',memname,',',memname,')');
+  libds=cats('sashelp.',memname);
+  if exist(libds) then line=cats('%mp_ds2fmtds(',libds,',',memname,')');
   put line;
 run;
 
+options obs=50;
 %inc inc;
 
 %mp_assert(
diff --git a/tests/viyaonly/mv_createwebservice.test.sas b/tests/viyaonly/mv_createwebservice.test.sas
index 25b7298..d23e1a6 100644
--- a/tests/viyaonly/mv_createwebservice.test.sas
+++ b/tests/viyaonly/mv_createwebservice.test.sas
@@ -33,6 +33,7 @@ run;
 %put TEST1: checking web service code;
 data work.test_results;
   length test_description $256 test_result $4 test_comments $256;
+  if _n_=1 then call missing (of _all_);
   infile compare end=eof;
   input;
   if eof then do;
diff --git a/viya/mv_getfoldermembers.sas b/viya/mv_getfoldermembers.sas
index df27ae1..65db7be 100644
--- a/viya/mv_getfoldermembers.sas
+++ b/viya/mv_getfoldermembers.sas
@@ -123,6 +123,7 @@ options noquotelenmax;
   libname &libref2 JSON fileref=&fname2;
   data &outds;
     length id $36 name $128 uri $64 type $32 description $256;
+    if _n_=1 then call missing (of _all_);
     set &libref2..items;
   run;
   filename &fname2 clear;
diff --git a/viya/mv_jobwaitfor.sas b/viya/mv_jobwaitfor.sas
index ff31f8b..b485365 100644
--- a/viya/mv_jobwaitfor.sas
+++ b/viya/mv_jobwaitfor.sas
@@ -168,6 +168,7 @@ run;
 data &outds;
   format _program uri $128. state $32. stateDetails $32. timestamp datetime19.
     jobparams $32767.;
+  call missing (of _all_);
   stop;
 run;