diff --git a/scripts/create_customdc_stable_update_pr.sh b/scripts/create_customdc_stable_update_pr.sh
index 730080cb7d..7bcd7fbc4e 100755
--- a/scripts/create_customdc_stable_update_pr.sh
+++ b/scripts/create_customdc_stable_update_pr.sh
@@ -13,7 +13,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Opens a PR to merge new changes into the custom DC stable branch.
+# Facilitates opening a PR to merge new changes into the custom DC stable branch.
+# - Prompts for what commit to release at
+# - Creates local and remote branches at that commit
+# - Opens a web browser with pre-filled PR details
+
+# Usage:
+#   ./scripts/create_customdc_stable_update_pr.sh
+
+# If the script fails and you need to clean up old branches:
+#   ./scripts/create_customdc_stable_update_pr.sh --delete
+
+# To skip branch creation and reuse existing branches:
+#   ./scripts/create_customdc_stable_update_pr.sh --reuse
 
 set -e
 
@@ -21,6 +33,18 @@ MASTER_BRANCH=master
 STABLE_BRANCH=customdc_stable
 UPDATE_BRANCH=cdcStableUpdate
 
+# Parse option flag if present
+mode="create"
+if [[ "$1" == "--delete" ]]; then
+  mode="delete"
+elif [[ "$1" == "--reuse" ]]; then
+  mode="reuse"
+elif [[ "$1" != "" ]]; then
+  echo "Unknown option: $1"
+  echo "Available options are '--delete' and '--reuse'."
+  exit 1
+fi
+
 # Check if GitHub CLI is installed
 if ! command -v gh &> /dev/null; then
   echo "GitHub CLI is not installed. Please install it to continue."
@@ -39,66 +63,121 @@ fi
 if gh repo set-default --view 2>&1 >/dev/null | grep "no default repository"; then
   # No default repository is set for GitHub CLI.
   # We don't have to print an error message because the above already prints one.
-  echo "Choose your *forked repo* as the default."
+  echo "Choose datacommonsorg/website as the default."
   exit 1
 fi
 
 # Find the remote associated with the main repo
-upstream_name=$(git remote -v | grep "datacommonsorg" | awk '{print $1}' | head -n 1)
-if [ -z "$upstream_name" ]; then
+upstream_remote=$(git remote -v | grep "datacommonsorg" | awk '{print $1}' | head -n 1)
+if [ -z "$upstream_remote" ]; then
   echo "No remote found with 'datacommonsorg' in its URL."
   exit 1
 fi
-echo "Remote for main repo is '${upstream_name}'".
+echo "Remote for main repo is '${upstream_remote}'".
 
 # Find the remote associated with the forked repo
-fork_name=$(git remote -v | grep -v "datacommonsorg" | awk '{print $1}' | head -n 1)
-if [ -z "$fork_name" ]; then
+fork_remote=$(git remote -v | grep -v "datacommonsorg" | awk '{print $1}' | head -n 1)
+if [ -z "$fork_remote" ]; then
   echo "No remote found without 'datacommonsorg' in its URL."
   exit 1
 fi
-echo "Remote for forked repo is '${fork_name}'".
+echo "Remote for forked repo is '${fork_remote}'".
+
+fork_owner=$(gh repo view $(git remote get-url origin) --json owner --jq '.owner.login')
+fork_name=$(gh repo view $(git remote get-url origin) --json name --jq '.name')
+echo "${fork_remote} = ${fork_owner}/${fork_name}"
+echo ""
+
+# If delete flag is specified, delete local and remote branches then exit.
+if [[ $mode == "delete" ]]; then
+  if ! git merge-base --is-ancestor "${fork_remote}/${UPDATE_BRANCH}" "${upstream_remote}/${MASTER_BRANCH}"; then
+    echo "Remote branch "${fork_remote}/${UPDATE_BRANCH}" has unmerged changes. Not deleting."
+    exit 1
+  fi
+  echo "Deleting branch ${UPDATE_BRANCH} on both local and remote..."
+  git branch -d "$UPDATE_BRANCH"
+  git push "$fork_remote" --delete "$UPDATE_BRANCH"
+  echo ""
+  echo "Ready to re-run without '--delete'."
+  exit 0
+fi
 
 # Check whether a local update branch already exists.
 if git show-ref --verify --quiet "refs/heads/${UPDATE_BRANCH}"; then
-  echo "A local branch named '${UPDATE_BRANCH}' already exists."
-  echo "Delete it, then re-run this script."
-  exit 1
+  # Fail unless mode is reuse
+  if [[ $mode != "reuse" ]]; then
+    echo "A local branch named '${UPDATE_BRANCH}' already exists."
+    echo "Run with '--delete' to remove it or '--reuse' to use it."
+    exit 1
+  fi
+elif [[ $mode == "reuse" ]]; then
+  echo "Local branch '${UPDATE_BRANCH}' does not exist."
+  echo "Run without '--reuse' to create it."
 fi
 
 # Check whether a remote update branch already exists.
-if git ls-remote --heads "$fork_name" "$UPDATE_BRANCH" | grep -q "$UPDATE_BRANCH"; then
-  echo "A branch named '${UPDATE_BRANCH}' already exists on remote '${fork_name}'".
-  echo "Delete it, then re-run this script."
-  exit 1
+if git ls-remote --heads "$fork_remote" "$UPDATE_BRANCH" | grep -q "$UPDATE_BRANCH"; then
+  if [[ $mode != "reuse" ]]; then
+    echo "A branch named '${UPDATE_BRANCH}' already exists on remote '${fork_remote}'".
+    echo "Run with '--delete' to remove it or '--reuse' to use it."
+    exit 1
+  fi
+elif [[ $mode == "reuse" ]]; then
+  echo "Remote branch '${UPDATE_BRANCH}' does not exist."
+  echo "Run without '--reuse' to create it."
 fi
 
-# Fetch relevant branches from the main repo
-git fetch $upstream_name $MASTER_BRANCH $STABLE_BRANCH
+if [[ $mode == "create" ]]; then
+  # Fetch relevant branches from the main repo
+  git fetch $upstream_remote $MASTER_BRANCH $STABLE_BRANCH
 
-# Show the user the commits that are in master but not in customdc_stable
-echo ""
-echo "The following commits are in ${MASTER_BRANCH} but not in ${STABLE_BRANCH}:"
-echo ""
-git log --pretty=format:"%h %s" ${upstream_name}/${STABLE_BRANCH}..${upstream_name}/${MASTER_BRANCH} --reverse
-echo ""
+  # Show the user the commits that are in master but not in customdc_stable
+  echo ""
+  echo "The following commits are in ${MASTER_BRANCH} but not in ${STABLE_BRANCH}:"
+  echo ""
+  git log --pretty=format:"%h %s" ${upstream_remote}/${STABLE_BRANCH}..${upstream_remote}/${MASTER_BRANCH} --reverse
+  echo ""
 
-# Ask the user to select a commit
-read -p "Enter the commit hash to create the branch from: " commit_hash
+  # Ask the user to select a commit
+  read -p "Enter the commit hash to create the branch from: " commit_hash
 
-# Create a new branch at the selected commit
-git checkout -b "$UPDATE_BRANCH" "$commit_hash"
+  # Create a new branch at the selected commit
+  git branch "$UPDATE_BRANCH" "$commit_hash"
+  git push -u $fork_remote $UPDATE_BRANCH
+fi
 
 # Get the current date in YYYY-MM-DD format
 current_date=$(date +%Y-%m-%d)
 
-echo "Creating PR..."
-
-# Open a draft PR using GitHub CLI
+# Construct the PR body
+pr_body="# Highlights
+- **TODO** List changes to custom DC since last stable release"
+
+# Add temporary reference links to PR body
+generate_comparison_url() {
+  local submod_name=$1
+  local stable_commit=$(git rev-parse --short "$upstream_remote/$STABLE_BRANCH:${submod_name}")
+  local update_commit=$(git rev-parse --short "$UPDATE_BRANCH:${submod_name}")
+  echo "https://github.com/datacommonsorg/${submod_name}/compare/${stable_commit}...${update_commit}"
+}
+mixer_comparison_url=$(generate_comparison_url mixer)
+import_comparison_url=$(generate_comparison_url import)
+pr_body+="
+
+# Resources - REMOVE BEFORE MERGING
+- Diff links to help with writing highlights:
+  - Mixer: ${mixer_comparison_url}
+  - Import: ${import_comparison_url}
+- Website changes are listed on this page.
+- If you're unsure what affects custom DC, please message the team."
+
+echo "Opening PR creation UI..."
+
+# Open the PR creation UI using GitHub CLI
 gh pr create \
   --repo datacommonsorg/website \
   --base customdc_stable \
-  --head "${fork_name}:${UPDATE_BRANCH}" \
+  --head "${fork_owner}:${fork_name}:${UPDATE_BRANCH}" \
   --title "$current_date Custom DC stable release" \
-  --body "TODO: Summarize changes since last stable release." \
-  --draft
+  --body "$pr_body" \
+  --web