diff --git a/app/models/alma_submit_collection/marc_record.rb b/app/models/alma_submit_collection/marc_record.rb
index 3223f28d..28c1028e 100644
--- a/app/models/alma_submit_collection/marc_record.rb
+++ b/app/models/alma_submit_collection/marc_record.rb
@@ -52,6 +52,7 @@ def record_fixes
     end
 
     def constituent_records
+      Rails.logger.debug("SubmitCollection: Looking for constituent records for record #{@record['001']}")
       marc_records_from_api = AlmaApi.new.fetch_marc_records(constituent_record_ids(@record))
       marc_records_from_api.map do |record|
         recap_record = MarcRecord.new(record, @wanted852, @wanted876, @associated_holding_fields)
diff --git a/app/models/alma_submit_collection/marc_s3_writer.rb b/app/models/alma_submit_collection/marc_s3_writer.rb
index e34eb467..e670d2f5 100644
--- a/app/models/alma_submit_collection/marc_s3_writer.rb
+++ b/app/models/alma_submit_collection/marc_s3_writer.rb
@@ -40,6 +40,7 @@ def done
         compressor = Zlib::GzipWriter.new(compressed)
         compressor.write file_contents.read
         compressor.close
+        Rails.logger.debug('SubmitCollection: Writing file to SCSB S3')
         client.put_object(bucket:, body: compressed.string, key: "#{Rails.configuration.scsb_s3[:scsb_s3_updates]}/scsb_#{File.basename(file_path)}")
       end
       @current_file.unlink
diff --git a/app/models/marc_collection.rb b/app/models/marc_collection.rb
index 0f2616f9..8bf09ab7 100644
--- a/app/models/marc_collection.rb
+++ b/app/models/marc_collection.rb
@@ -11,6 +11,7 @@ def initialize(document)
   end
 
   def write(io)
+    Rails.logger.debug('Parsing an XML file and adding the namespace')
     parser = Nokogiri::XML::SAX::Parser.new(MarcCollectionDocumentCallbacks.new(io))
     io.write "<?xml version=\"1.0\"?>\n"
     parser.parse document