diff --git a/htdocs/core/class/html.formactions.class.php b/htdocs/core/class/html.formactions.class.php
index e1731984229..ed9b8d3094a 100644
--- a/htdocs/core/class/html.formactions.class.php
+++ b/htdocs/core/class/html.formactions.class.php
@@ -293,6 +293,11 @@ class FormActions
 					print '</td>';
 
 					$actionstatic = $actioncomm;
+
+					// Example: Email sent from invoice card
+					//$actionstatic->code = 'AC_BILL_SENTBYMAIL
+					//$actionstatic->type_code = 'AC_OTHER_AUTO'
+
 					// Type
 					$labeltype = $actionstatic->type_code;
 					if (empty($conf->global->AGENDA_USE_EVENT_TYPE) && empty($arraylist[$labeltype])) {
diff --git a/htdocs/install/mysql/data/llx_c_actioncomm.sql b/htdocs/install/mysql/data/llx_c_actioncomm.sql
index 38f09ba23d0..f11e397a8aa 100644
--- a/htdocs/install/mysql/data/llx_c_actioncomm.sql
+++ b/htdocs/install/mysql/data/llx_c_actioncomm.sql
@@ -37,14 +37,6 @@
 
 delete from llx_c_actioncomm where id in (1,2,3,4,5,6,8,9,10,11,30,31,40,50);
 
--- Code used from 3.3+ when type of event is used
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  1, 'AC_TEL',       'Phone call',       'system', NULL, 1, 2);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  2, 'AC_FAX',       'Send Fax',         'system', NULL, 1, 3);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  4, 'AC_EMAIL',     'Send Email',       'system', NULL, 1, 4);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  5, 'AC_RDV',       'Rendez-vous',      'system', NULL, 1, 1);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  6, 'AC_EMAIL_IN',  'reception Email',  'system', NULL, 1, 4);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 11, 'AC_INT',   'Intervention on site', 'system', NULL, 1, 4);
-
 -- Code kept for backward compatibility < 3.3 
 --insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  3, 'AC_PROP',    'Send commercial proposal by email', 'systemauto', 'propal', 0, 10);
 --insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  8, 'AC_COM',     'Send customer order by email',      'systemauto', 'order', 0, 8);
@@ -53,10 +45,18 @@ insert into llx_c_actioncomm (id, code, libelle, type, module, active, position)
 --insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 30, 'AC_SUP_ORD', 'Send supplier order by email',      'systemauto', 'order_supplier', 0, 9);
 --insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 31, 'AC_SUP_INV', 'Send supplier invoice by email',    'systemauto', 'invoice_supplier', 0, 7);
 
+-- Code used from 3.3+ when type of event is used
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  1, 'AC_TEL',       'Phone call',       'system', NULL, 1, 2);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  2, 'AC_FAX',       'Send Fax',         'system', NULL, 1, 3);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  4, 'AC_EMAIL',     'Send Email',       'system', NULL, 1, 4);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  5, 'AC_RDV',       'Rendez-vous',      'system', NULL, 1, 1);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values (  6, 'AC_EMAIL_IN',  'reception Email',  'system', NULL, 1, 4);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 11, 'AC_INT',   'Intervention on site', 'system', NULL, 1, 4);
+
 -- Code used from 3.3+ when type of event is not used
 
 insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 40, 'AC_OTH_AUTO', 'Other (automatically inserted events)', 'systemauto', NULL, 1, 20);
-insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 50, 'AC_OTH',      'Other (manually inserted events)',      'systemauto', NULL, 1, 5);
+insert into llx_c_actioncomm (id, code, libelle, type, module, active, position) values ( 50, 'AC_OTH',      'Other (manually inserted events)',      'system',     NULL, 1, 5);
 
 INSERT INTO llx_c_actioncomm (id, code, libelle, type, module, active, position) VALUES ( 60, 'AC_EO_ONLINECONF',  'Online/Virtual conference', 'module', 'conference@eventorganization', 1, 60);
 INSERT INTO llx_c_actioncomm (id, code, libelle, type, module, active, position) VALUES ( 61, 'AC_EO_INDOORCONF',  'Indoor conference',         'module', 'conference@eventorganization', 1, 61);
diff --git a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
index e9de9336a1c..044d97fd4e4 100644
--- a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
+++ b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
@@ -52,6 +52,7 @@ ALTER TABLE llx_user DROP COLUMN idpers1;
 ALTER TABLE llx_user DROP COLUMN idpers2;
 ALTER TABLE llx_user DROP COLUMN idpers3;
 
+UPDATE llx_c_actioncomm SET type = 'system' WHERE code = 'AC_OTH';
 
 -- v17