diff --git a/doi_manager.py b/doi_manager.py
index a9044d9..4459905 100755
--- a/doi_manager.py
+++ b/doi_manager.py
@@ -1,5 +1,6 @@
 import sys
 
+import os.path
 from utils.gsheets_manager import retrieve_doi_mets, write_doi_mets
 from utils.sheets_creds_builder import refresh_credentials
 from utils.doi_mets import JournalMetsHandler, DoiMinter
@@ -46,7 +47,17 @@
                 MAIN_DOI_REGISTRY_SHEET, len(issue_level_mets[8:])
             )
             print("Writing proposed DOIs to patron metadata sheet...")
+
+            input_unit = sys.argv[4] if len(sys.argv) > 4 else ""
+            input_contact = sys.argv[5] if len(sys.argv) > 5 else ""
+
+            if bool(input_unit) and len(input_unit) < 5:
+                print("Warning: Check input unit.")
+
+            if bool(input_contact) and len(input_contact) < 5:
+                print("Warning: Check input contact.")
             write_doi_mets(sys.argv[3], dois)
+            DoiMinter.doi_registration(issue_level_mets, dois, input_unit, input_contact)
             print("Complete.")
 
         elif sys.argv[1] == "retrieve-fda-handles":
@@ -61,6 +72,7 @@
                 6. Report that write-out was successful
             """
 
+
         elif sys.argv[1] == "build-xml":
             print("Retrieving metadata from template sheet...")
             issue_level_mets = retrieve_doi_mets(sys.argv[3], "mets_main")
diff --git a/utils/doi_mets.py b/utils/doi_mets.py
index 92c4d1a..22ef2f1 100755
--- a/utils/doi_mets.py
+++ b/utils/doi_mets.py
@@ -1,8 +1,16 @@
-from utils.gsheets_manager import retrieve_doi_mets
+import os.path
+from utils.gsheets_manager import retrieve_doi_mets, update_registrations
 from random import random
 import uuid
 from datetime import datetime
-from global_settings import ALLOWED_CHARS, DEPOSITOR_NAME, DEPOSITOR_EMAIL_ADDRESS
+from global_settings import (
+    ALLOWED_CHARS, DEPOSITOR_NAME, DEPOSITOR_EMAIL_ADDRESS,
+    G_TOKEN_FILE,
+    MAIN_DOI_REGISTRY_SHEET,
+    REGISTRY_TEMPLATE_TITLE_COLUMN_RANGE
+)
+from googleapiclient.discovery import build
+from google.oauth2.credentials import Credentials
 import re
 
 
@@ -339,11 +347,62 @@ def mint(reg_sheet_id, number_needed):
                     break
         return generated_dois
 
-    def doi_registration(list_dois,title="",journal="",date="",unit="",contact="",url="",handle=""):
+    def doi_registration(key, list_dois, unit=None, contact=None, url=None):
         """
         This function should write the DOIs passed as a pararamter (e.g. list of DOIs) to the registry GSheet
         In addition to the list of DOIs to register, it should include a series of optional parameters to write to the other columns of the sheet
         as well as auto-increment column A. The write step should be treated as an append to the values already in the GSheet to prevent accidentally
         overwriting what is there.
         :return:
-        """
\ No newline at end of file
+        """
+
+        Journal = key[2][0]
+        Volume = key[5][3]
+        Issue = key[5][4]
+        Journal_information = f'{Journal}, {Volume} {Issue}'
+        Journal_url = key[5][7]
+        # Issue Contents Metadata
+        Issue = key[8:]
+
+        if os.path.exists(G_TOKEN_FILE):
+            creds = Credentials.from_authorized_user_file(G_TOKEN_FILE)
+
+        service = build("sheets", "v4", credentials=creds)
+        sheet = service.spreadsheets()
+
+        # Get the value from MAIN_DOI_REGISTRY_SHEET
+        result = sheet.values().get(spreadsheetId=MAIN_DOI_REGISTRY_SHEET,
+                                    range=REGISTRY_TEMPLATE_TITLE_COLUMN_RANGE).execute()
+        column_values = result.get("values", [])
+        # Find where the blank in MAIN_DOI_REGISTRY_SHEET begins
+        index = column_values[-1][0]
+
+        # Get current date
+        current_date = datetime.now()
+        formatted_date = current_date.strftime('%Y-%m-%d')
+
+        # Add Journal data to MAIN_DOI_REGISTRY_SHEET
+        doi_index = -1
+        index = int(index) + 1
+        new_value = [index] + [Journal_information] + [Journal_information] + [formatted_date] + \
+                    [unit, contact, Journal_url] + [list_dois[doi_index]]
+        print(new_value)
+        body = {
+            'values': [new_value]
+        }
+        update_registrations(REGISTRY_TEMPLATE_TITLE_COLUMN_RANGE, body)
+
+        # Add Issue data to MAIN_DOI_REGISTRY_SHEET row by row
+        doi_index = 0
+
+        for row in Issue:
+            print(len(row))
+            index = int(index) + 1
+            new_value = [index] + [row[1]] + [Journal_information] + [formatted_date] + [unit, contact, row[6]] + [
+                list_dois[doi_index]]
+            doi_index = doi_index + 1
+            print(new_value)
+            body = {
+                'values': [new_value]
+            }
+            update_registrations(REGISTRY_TEMPLATE_TITLE_COLUMN_RANGE, body)
diff --git a/utils/gsheets_manager.py b/utils/gsheets_manager.py
index b439330..80fe373 100755
--- a/utils/gsheets_manager.py
+++ b/utils/gsheets_manager.py
@@ -14,6 +14,7 @@
     METS_SERIALS_DOI_COLUMN_RANGE,
     METS_SERIALS_ISSUE_DOI_COLUMN_RANGE,
     REGISTRY_TEMPLATE_COLUMN_RANGE,
+    MAIN_DOI_REGISTRY_SHEET,
     METS_CITATIONS_TEMPLATE_RANGE,
     METS_AUTHORS_TEMPLATE_RANGE,
     SCOPES,
@@ -129,7 +130,20 @@ def write_doi_mets(sheet_id, append_vals, retrieve_type="mets_main"):
 
     return response
 
+def update_registrations(range, body):
+    if os.path.exists(G_TOKEN_FILE):
+        creds = Credentials.from_authorized_user_file(G_TOKEN_FILE)
 
+    service = build("sheets", "v4", credentials=creds)
+    sheet = service.spreadsheets()
+    response = (
+        sheet.values().append(
+            spreadsheetId=MAIN_DOI_REGISTRY_SHEET,
+            range=range,
+            valueInputOption="RAW",
+            body=body,
+        ).execute())
+    return response
 
 
 ### MORE SAMPLE CODE BELOW
diff --git a/utils/sheets_creds_builder.py b/utils/sheets_creds_builder.py
index f9e0592..3144403 100755
--- a/utils/sheets_creds_builder.py
+++ b/utils/sheets_creds_builder.py
@@ -30,3 +30,4 @@ def refresh_credentials():
             with open('doi_workflow_token.json', 'w') as token:
                 token.write(creds.to_json())
 
+