diff --git a/erpnext/regional/doctype/datev_settings/datev_settings.json b/erpnext/regional/doctype/datev_settings/datev_settings.json
index caed7367dc1..d319324a68e 100644
--- a/erpnext/regional/doctype/datev_settings/datev_settings.json
+++ b/erpnext/regional/doctype/datev_settings/datev_settings.json
@@ -6,6 +6,7 @@
  "engine": "InnoDB",
  "field_order": [
   "client",
+  "account_number_length",
   "column_break_2",
   "client_number",
   "section_break_4",
@@ -57,9 +58,16 @@
   {
    "fieldname": "column_break_6",
    "fieldtype": "Column Break"
+  },
+  {
+   "default": "4",
+   "fieldname": "account_number_length",
+   "fieldtype": "Int",
+   "label": "Account Number Length",
+   "reqd": 1
   }
  ],
- "modified": "2020-04-15 12:59:57.786506",
+ "modified": "2020-10-03 16:52:35.903867",
  "modified_by": "Administrator",
  "module": "Regional",
  "name": "DATEV Settings",
diff --git a/erpnext/regional/report/datev/datev.py b/erpnext/regional/report/datev/datev.py
index 815b5ed4d29..9f2e86bab36 100644
--- a/erpnext/regional/report/datev/datev.py
+++ b/erpnext/regional/report/datev/datev.py
@@ -247,7 +247,7 @@ def get_datev_csv(data, filters):
 		# M = Start of the fiscal year (Wirtschaftsjahresbeginn)
 		frappe.utils.formatdate(filters.get("fiscal_year_start"), "yyyyMMdd"),
 		# N = Length of account numbers (Sachkontenlänge)
-		"4",
+		str(filters.get('account_number_length', 4)),
 		# O = Transaction batch start date (YYYYMMDD)
 		frappe.utils.formatdate(filters.get('from_date'), "yyyyMMdd"),
 		# P = Transaction batch end date (YYYYMMDD)
@@ -521,6 +521,9 @@ def download_datev_csv(filters=None):
 		filters = json.loads(filters)
 
 	validate(filters)
+
+	filters['account_number_length'] = frappe.get_value('DATEV Settings', filters.get('company'), 'account_number_length')
+
 	fiscal_year = get_fiscal_year(date=filters.get('from_date'), company=filters.get('company'))
 	filters['fiscal_year_start'] = fiscal_year[1]