diff --git a/index.js b/index.js
index 1915f0bc19f3ab6b0a1dbd11779942326fdadf86..dbddc86a5bbc22c0e763dd0cd60f158423ae3a3c 100644
--- a/index.js
+++ b/index.js
@@ -112,6 +112,7 @@ async function start(fields, cozyParameters) {
   log('info', 'User Logging...')
 
   if (isFirstStart(await getAccount(ACCOUNT_ID))) {
+    log('info', 'First start...')
     const user = await verifyUserIdentity(fields, baseUrl, apiAuthKey, sgeLogin)
 
     let consent = await createBoConsent(
@@ -376,7 +377,8 @@ async function getMaxPowerData(url, apiAuthKey, userLogin, pointId) {
 
 /**
  * If start date exceed the maximum amount of data we can get with one query
- * get only 36 month
+ * get only 36 month.
+ * On manual execution, set the start date to one year ago.
  */
 function setStartDate() {
   if (moment(endDate).diff(startDailyDate, 'months', true) > 36) {
@@ -387,6 +389,10 @@ function setStartDate() {
     startDailyDate = moment(endDate).subtract(36, 'month')
     startDailyDateString = startDailyDate.format('YYYY-MM-DD')
   }
+  if (manualExecution) {
+    startDailyDate = moment(endDate).subtract(12, 'month')
+    startDailyDateString = startDailyDate.format('YYYY-MM-DD')
+  }
 }
 
 /**