diff --git a/src/helpers/parsing.js b/src/helpers/parsing.js
index af11ce21e28ce99bc0b528f2bce1b8cf16d99e4a..caffed89dc715f5a1525b2e2aa691a405e840759 100644
--- a/src/helpers/parsing.js
+++ b/src/helpers/parsing.js
@@ -75,9 +75,17 @@ function parseContracts(result) {
 function parseServiceId(result) {
   log('info', 'Parsing serviceId')
   const json = JSON.stringify(result)
-  return JSON.parse(json)['Envelope']['Body'][
-    'commanderCollectePublicationMesuresResponse'
-  ]['serviceSouscritId']
+  const contractInfo =
+    JSON.parse(json)['Envelope']['Body'][
+      'commanderCollectePublicationMesuresResponse'
+    ]
+  if (contractInfo !== undefined) {
+    return contractInfo['serviceSouscritId']
+  } else {
+    throw new Error(
+      "No serviceSouscritId found, contract hasn't been created properly."
+    )
+  }
 }
 
 /**