diff --git a/module/project/lang/de.php b/module/project/lang/de.php
index 29b42f427f..50584ed1b7 100644
--- a/module/project/lang/de.php
+++ b/module/project/lang/de.php
@@ -317,8 +317,8 @@ $lang->project->parentBeginEnd      = "Parent begin&end date: %s ~ %s";
 $lang->project->parentBudget        = "The budget of the parent project: ";
 $lang->project->beginLetterParent   = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->project->endGreaterParent    = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->project->beginGreateChild    = 'The start date of project "%s" should be greater than or equal to the minimum start date of project "%s" set : %s';
-$lang->project->endLetterChild      = 'The finish date for project "%s" should be less than or equal to the maximum finish date for project "%s" set :%s';
+$lang->project->beginGreateChild    = 'The start date of the project "%s" should be ≥ the start date of program "%s": %s.';
+$lang->project->endLetterChild      = 'The finish date of the project "%s" should be ≤ the finish date of program "%s": %s.';
 $lang->project->childLongTime       = "If a child as long-term projects, the parent should be long-term too.";
 $lang->project->confirmUnlinkMember = "Do you want to remove this user from project?";
 
diff --git a/module/project/lang/en.php b/module/project/lang/en.php
index c914ed3dfb..6557b88c7b 100644
--- a/module/project/lang/en.php
+++ b/module/project/lang/en.php
@@ -317,8 +317,8 @@ $lang->project->parentBeginEnd      = "The begin and end date of the parent proj
 $lang->project->parentBudget        = "The budget of the parent project: ";
 $lang->project->beginLetterParent   = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->project->endGreaterParent    = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->project->beginGreateChild    = 'The start date of project "%s" should be greater than or equal to the minimum start date of project "%s" set : %s';
-$lang->project->endLetterChild      = 'The finish date for project "%s" should be less than or equal to the maximum finish date for project "%s" set :%s';
+$lang->project->beginGreateChild    = 'The start date of the project "%s" should be ≥ the start date of program "%s": %s.';
+$lang->project->endLetterChild      = 'The finish date of the project "%s" should be ≤ the finish date of program "%s": %s.';
 $lang->project->childLongTime       = "There are long-term projects in the child project, and the parent project should also be a long-term project.";
 $lang->project->confirmUnlinkMember = "Do you want to remove this user from project?";
 
diff --git a/module/project/lang/fr.php b/module/project/lang/fr.php
index c9cae434e2..b15b12fcbf 100644
--- a/module/project/lang/fr.php
+++ b/module/project/lang/fr.php
@@ -317,8 +317,8 @@ $lang->project->parentBeginEnd      = "Parent begin&end date: %s ~ %s";
 $lang->project->parentBudget        = "The budget of the parent project: ";
 $lang->project->beginLetterParent   = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->project->endGreaterParent    = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->project->beginGreateChild    = 'La date de début du projet "%s" doit être supérieure ou égale à la date de début minimale du projet "%s" set : % s';
-$lang->project->endLetterChild      = 'La date d\'achèvement du projet "%s" doit être inférieure ou égale à la date d\'achèvement maximale de l\'ensemble du projet "%s" set: % s';
+$lang->project->beginGreateChild    = 'La date de début du projets "%s" doit être ≥ à la date de début du programme "%s" : %s.';
+$lang->project->endLetterChild      = 'La date de fin du projets "%s" doit être ≤ à la date de fin du programme "%s" : %s.';
 $lang->project->childLongTime       = "If a child as long-term projects, the parent should be long-term too.";
 $lang->project->confirmUnlinkMember = "Do you want to remove this user from project?";