diff --git a/modules/auth/auth.controller.js b/modules/auth/auth.controller.js
index 9223360..83afba0 100644
--- a/modules/auth/auth.controller.js
+++ b/modules/auth/auth.controller.js
@@ -205,8 +205,12 @@ async function register(req, res, next) {
       newUser = await authService.extraMethods.updateUser(newUser.id, data);
 
       try {
-        const userDTO = marketingService.userToMarktingDTO(newUser);
-        marketing.updateMemberByEmail(oldUserData.email, userDTO);
+        const userDTO = marketingService.userToMarketingDTO(newUser);
+        if (await marketing.getMemberByEmail(newUser.email)) {
+          marketing.updateMemberByEmail(oldUserData.email, userDTO);
+        } else {
+          // No mandar a Sendinblue hasta que no se inscriba en un congreso.
+        }
       } catch (err) {
         console.error(err);
       }
@@ -534,7 +538,7 @@ async function deleteUser(req, res, next) {
 
   // Delete in Sendinblue
   try {
-    const userDTO = marketingService.userToMarktingDTO(dataUser);
+    const userDTO = marketingService.userToMarketingDTO(dataUser);
     marketing.deleteMemberByEmail(userDTO.email);
   } catch (error) {
     console.error(error);