diff --git a/htdocs/emailcollector/class/emailcollector.class.php b/htdocs/emailcollector/class/emailcollector.class.php
index cb06609562d..682c539b784 100644
--- a/htdocs/emailcollector/class/emailcollector.class.php
+++ b/htdocs/emailcollector/class/emailcollector.class.php
@@ -2838,6 +2838,8 @@ class EmailCollector extends CommonObject
 									if (empty($projecttocreate->ref) || (is_numeric($projecttocreate->ref) && $projecttocreate->ref <= 0)) {
 										$errorforactions++;
 										$this->error = 'Failed to create project: Can\'t get a valid value for the field ref with numbering template = '.$modele.', thirdparty id = '.$thirdpartystatic->id;
+
+										$operationslog .= '<br>'.$this->error;
 									} else {
 										// Create project
 										$result = $projecttocreate->create($user);
@@ -2845,6 +2847,8 @@ class EmailCollector extends CommonObject
 											$errorforactions++;
 											$this->error = 'Failed to create project: '.$langs->trans($projecttocreate->error);
 											$this->errors = $projecttocreate->errors;
+
+											$operationslog .= '<br>'.$this->error;
 										} else {
 											if ($attachments) {
 												$destdir = $conf->project->dir_output.'/'.$projecttocreate->ref;