diff --git a/scripts/insert-nids.sh b/scripts/insert-nids.sh
index 81da0bf..d2409ca 100755
--- a/scripts/insert-nids.sh
+++ b/scripts/insert-nids.sh
@@ -2,11 +2,6 @@
 
 set -eou pipefail
 
-if [ ! -f islandora_workbench/input_data/rollback.csv ]; then
-  echo "No rollback file to append to spreadsheet"
-  exit 0
-fi
-
 regex='^(https:\/\/docs\.google\.com\/spreadsheets\/d\/[a-zA-Z0-9_-]+)'
 if [[ "$URL" =~ $regex ]]; then
   URL="${BASH_REMATCH[1]}"
@@ -18,10 +13,18 @@ fi
 # extract sheet ID from https://docs.google.com/spreadsheets/d/foo/edit?gid=0#gid=0
 SHEET_ID=$(echo "$URL" | sed -n 's|.*/d/\(.*\)|\1|p')
 API_URL="https://sheets.googleapis.com/v4/spreadsheets/$SHEET_ID/values/Sheet1!D2:append"
-PAYLOAD=$(tail +4 islandora_workbench/input_data/rollback.csv | jq -nR '[inputs | {"values": [split("\n")]}]')
+PAYLOAD=$(tail +4 islandora_workbench/input_data/rollback.csv | jq -R 'tonumber? | [if . == null then empty else . end]' | jq -s '{"values": [.[] | . ]}')
+
+STATUS=$(curl -s -X POST \
+  -o /tmp/gsup.log \
+  -w '%{http_code}' \
+  --header "Authorization: Bearer $ACCESS_TOKEN" \
+  --header "Content-Type: application/json" \
+  --data @<(echo "$PAYLOAD") \
+  "$API_URL?valueInputOption=RAW")
 
-curl -s -X POST \
-    --header "Authorization: Bearer $ACCESS_TOKEN" \
-    --header "Content-Type: application/json" \
-    --data @<(echo "$PAYLOAD") \
-    "$API_URL?valueInputOption=RAW"
+if [ "${STATUS}" != 200 ]; then
+  echo "Failed to update spreadsheet with node IDs"
+  cat /tmp/gsup.log
+  exit 1
+fi