diff --git a/admin/about.php b/admin/about.php
index 1d88a59..8598451 100644
--- a/admin/about.php
+++ b/admin/about.php
@@ -16,9 +16,9 @@
  */
 
 /**
- * \file		diffusion/admin/about.php
- * \ingroup	diffusion
- * \brief	About page of Diffusion module.
+ * \file		dynamicsprices/admin/about.php
+ * \ingroup	dynamicsprices
+ * \brief	About page of DynamicsPrices module.
  */
 
 // Load Dolibarr environment
@@ -51,27 +51,27 @@
 }
 
 require_once DOL_DOCUMENT_ROOT.'/core/lib/admin.lib.php';
-require_once '../lib/diffusion.lib.php';
-require_once '../core/modules/modDiffusion.class.php';
+require_once '../lib/dynamicsprices.lib.php';
+require_once '../core/modules/modDynamicsPrices.class.php';
 
 // Load translations required by this page.
-$langs->loadLangs(array('admin', 'diffusion@diffusion'));
+$langs->loadLangs(array('admin', 'dynamicsprices@dynamicsprices'));
 
 // Restrict access to administrators only.
 if (empty($user->admin)) {
 	accessforbidden();
 }
 
-$moduleDescriptor = new modDiffusion($db);
-$title = $langs->trans('DiffusionAbout');
+$moduleDescriptor = new modDynamicsPrices($db);
+$title = $langs->trans('LMDB_AboutTitle');
 
 llxHeader('', $title);
 
 print load_fiche_titre($title, '', 'info');
-$head = diffusionAdminPrepareHead();
-print dol_get_fiche_head($head, 'about', $title, -1, 'diffusion@diffusion');
+$head = dynamicspricesAdminPrepareHead();
+print dol_get_fiche_head($head, 'about', $title, -1, 'dynamicsprices@dynamicsprices');
 
-print '<div class="underbanner opacitymedium">'.$langs->trans('DiffusionAboutPage').'</div>';
+print '<div class="underbanner opacitymedium">'.$langs->trans('LMDB_AboutDescription').'</div>';
 print '<br>';
 
 print '<div class="fichecenter">';
@@ -80,11 +80,11 @@
 print '<div class="fichehalfleft">';
 print '<div class="div-table-responsive-no-min">';
 print '<table class="noborder centpercent">';
-print '<tr class="liste_titre"><th colspan="2">'.$langs->trans('DiffusionAboutGeneral').'</th></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutVersion').'</td><td>'.dol_escape_htmltag($moduleDescriptor->version).'</td></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutFamily').'</td><td>'.dol_escape_htmltag($moduleDescriptor->family).'</td></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutDescription').'</td><td>'.dol_escape_htmltag($langs->trans($moduleDescriptor->description)).'</td></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutMaintainer').'</td><td>'.dol_escape_htmltag($moduleDescriptor->editor_name).'</td></tr>';
+print '<tr class="liste_titre"><th colspan="2">'.$langs->trans('LMDB_AboutGeneral').'</th></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutVersion').'</td><td>'.dol_escape_htmltag($moduleDescriptor->version).'</td></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutFamily').'</td><td>'.dol_escape_htmltag($moduleDescriptor->family).'</td></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutModuleDescription').'</td><td>'.dol_escape_htmltag($langs->trans($moduleDescriptor->description)).'</td></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutMaintainer').'</td><td>'.dol_escape_htmltag($moduleDescriptor->editor_name).'</td></tr>';
 print '</table>';
 print '</div>';
 print '</div>';
@@ -93,10 +93,10 @@
 print '<div class="fichehalfright">';
 print '<div class="div-table-responsive-no-min">';
 print '<table class="noborder centpercent">';
-print '<tr class="liste_titre"><th colspan="2">'.$langs->trans('DiffusionAboutResources').'</th></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutDocumentation').'</td><td><a href="'.dol_buildpath('/diffusion/README.md', 1).'" target="_blank" rel="noopener">'.$langs->trans('DiffusionAboutDocumentationLink').'</a></td></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutSupport').'</td><td>'.dol_escape_htmltag($langs->trans('DiffusionAboutSupportValue')).'</td></tr>';
-print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('DiffusionAboutContact').'</td><td><a href="https://'.dol_escape_htmltag($moduleDescriptor->editor_url).'" target="_blank" rel="noopener">'.dol_escape_htmltag($moduleDescriptor->editor_url).'</a></td></tr>';
+print '<tr class="liste_titre"><th colspan="2">'.$langs->trans('LMDB_AboutResources').'</th></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutDocumentation').'</td><td><a href="'.dol_buildpath('/dynamicsprices/README.md', 1).'" target="_blank" rel="noopener">'.$langs->trans('LMDB_AboutDocumentationLink').'</a></td></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutSupport').'</td><td>'.dol_escape_htmltag($langs->trans('LMDB_AboutSupportValue')).'</td></tr>';
+print '<tr class="oddeven"><td class="titlefield">'.$langs->trans('LMDB_AboutContact').'</td><td><a href="https://'.dol_escape_htmltag($moduleDescriptor->editor_url).'" target="_blank" rel="noopener">'.dol_escape_htmltag($moduleDescriptor->editor_url).'</a></td></tr>';
 print '</table>';
 print '</div>';
 print '</div>';
diff --git a/core/modules/modDynamicsPrices.class.php b/core/modules/modDynamicsPrices.class.php
index 9b4bd00..1eef3d8 100644
--- a/core/modules/modDynamicsPrices.class.php
+++ b/core/modules/modDynamicsPrices.class.php
@@ -550,6 +550,10 @@ public function init($options = '')
 		if ($result < 0) {
 			return -1; // Do not activate module if error 'not allowed' returned when loading module SQL queries (the _load_table run sql with run_sql with the error allowed parameter set to 'default')
 		}
+		$result = $this->ensureCommercialCategoryColumns();
+		if ($result < 0) {
+			return -1;
+		}
 
 		// Create product/service extrafield during init.
 		include_once DOL_DOCUMENT_ROOT.'/core/class/extrafields.class.php';
@@ -636,6 +640,39 @@ private function columnExists($tableName, $columnName)
 		return ($resql && $this->db->num_rows($resql) > 0);
 	}
 
+	/**
+	 * Add and populate code_commercial_category columns for module dictionaries.
+	 *
+	 * @return int
+	 */
+	private function ensureCommercialCategoryColumns()
+	{
+		$queries = array();
+
+		if (!$this->columnExists(MAIN_DB_PREFIX."c_coefprice", 'code_commercial_category')) {
+			$queries[] = "ALTER TABLE ".MAIN_DB_PREFIX."c_coefprice ADD COLUMN code_commercial_category VARCHAR(50) DEFAULT NULL";
+		}
+		if (!$this->columnExists(MAIN_DB_PREFIX."c_margin_on_cost", 'code_commercial_category')) {
+			$queries[] = "ALTER TABLE ".MAIN_DB_PREFIX."c_margin_on_cost ADD COLUMN code_commercial_category VARCHAR(50) DEFAULT NULL";
+		}
+		if ($this->columnExists(MAIN_DB_PREFIX."c_coefprice", 'fk_nature')) {
+			$queries[] = "UPDATE ".MAIN_DB_PREFIX."c_coefprice SET code_commercial_category = fk_nature WHERE (code_commercial_category IS NULL OR code_commercial_category = '') AND fk_nature IS NOT NULL AND fk_nature <> ''";
+		}
+		if ($this->columnExists(MAIN_DB_PREFIX."c_margin_on_cost", 'code_nature')) {
+			$queries[] = "UPDATE ".MAIN_DB_PREFIX."c_margin_on_cost SET code_commercial_category = code_nature WHERE (code_commercial_category IS NULL OR code_commercial_category = '') AND code_nature IS NOT NULL AND code_nature <> ''";
+		}
+
+		foreach ($queries as $sql) {
+			$resql = $this->db->query($sql);
+			if (!$resql) {
+				$this->error = $this->db->lasterror();
+				return -1;
+			}
+		}
+
+		return 1;
+	}
+
 	/**
 	 *	Function called when module is disabled.
 	 *	Remove from database constants, boxes and permissions from Dolibarr database.
diff --git a/langs/de_DE/dynamicsprices.lang b/langs/de_DE/dynamicsprices.lang
index 13ae59c..2fbc710 100644
--- a/langs/de_DE/dynamicsprices.lang
+++ b/langs/de_DE/dynamicsprices.lang
@@ -83,3 +83,13 @@ LMDB_AboutDescription = Allgemeine Informationen zum DynamicsPrices-Modul.
 
 LMDB_AboutGeneral = Allgemeine Informationen
 LMDB_AboutResources = Ressourcen
+
+LMDB_AboutVersion = Version
+LMDB_AboutFamily = Familie
+LMDB_AboutModuleDescription = Beschreibung
+LMDB_AboutMaintainer = Maintainer
+LMDB_AboutDocumentation = Dokumentation
+LMDB_AboutDocumentationLink = README öffnen
+LMDB_AboutSupport = Support
+LMDB_AboutSupportValue = Kontaktieren Sie den Maintainer für Support.
+LMDB_AboutContact = Kontakt
\ No newline at end of file
diff --git a/langs/en_US/dynamicsprices.lang b/langs/en_US/dynamicsprices.lang
index f3f1cb4..d90feb7 100644
--- a/langs/en_US/dynamicsprices.lang
+++ b/langs/en_US/dynamicsprices.lang
@@ -83,3 +83,13 @@ LMDB_AboutDescription = General information about DynamicsPrices module.
 
 LMDB_AboutGeneral = General information
 LMDB_AboutResources = Resources
+
+LMDB_AboutVersion = Version
+LMDB_AboutFamily = Family
+LMDB_AboutModuleDescription = Description
+LMDB_AboutMaintainer = Maintainer
+LMDB_AboutDocumentation = Documentation
+LMDB_AboutDocumentationLink = Open README
+LMDB_AboutSupport = Support
+LMDB_AboutSupportValue = Contact the maintainer for support.
+LMDB_AboutContact = Contact
\ No newline at end of file
diff --git a/langs/es_ES/dynamicsprices.lang b/langs/es_ES/dynamicsprices.lang
index 38af6ee..883f8b7 100644
--- a/langs/es_ES/dynamicsprices.lang
+++ b/langs/es_ES/dynamicsprices.lang
@@ -83,3 +83,13 @@ LMDB_AboutDescription = Información general sobre el módulo DynamicsPrices.
 
 LMDB_AboutGeneral = Información general
 LMDB_AboutResources = Recursos
+
+LMDB_AboutVersion = Versión
+LMDB_AboutFamily = Familia
+LMDB_AboutModuleDescription = Descripción
+LMDB_AboutMaintainer = Mantenedor
+LMDB_AboutDocumentation = Documentación
+LMDB_AboutDocumentationLink = Abrir README
+LMDB_AboutSupport = Soporte
+LMDB_AboutSupportValue = Contacte al mantenedor para soporte.
+LMDB_AboutContact = Contacto
\ No newline at end of file
diff --git a/langs/fr_FR/dynamicsprices.lang b/langs/fr_FR/dynamicsprices.lang
index aeae0a7..3dff546 100644
--- a/langs/fr_FR/dynamicsprices.lang
+++ b/langs/fr_FR/dynamicsprices.lang
@@ -85,3 +85,13 @@ LMDB_AboutDescription = Informations generales sur le module DynamicsPrices.
 
 LMDB_AboutGeneral = Informations generales
 LMDB_AboutResources = Ressources
+
+LMDB_AboutVersion = Version
+LMDB_AboutFamily = Famille
+LMDB_AboutModuleDescription = Description
+LMDB_AboutMaintainer = Mainteneur
+LMDB_AboutDocumentation = Documentation
+LMDB_AboutDocumentationLink = Ouvrir le README
+LMDB_AboutSupport = Support
+LMDB_AboutSupportValue = Contactez le mainteneur pour le support.
+LMDB_AboutContact = Contact
\ No newline at end of file
diff --git a/langs/it_IT/dynamicsprices.lang b/langs/it_IT/dynamicsprices.lang
index ba72872..4a8a5cd 100644
--- a/langs/it_IT/dynamicsprices.lang
+++ b/langs/it_IT/dynamicsprices.lang
@@ -83,3 +83,13 @@ LMDB_AboutDescription = Informazioni generali sul modulo DynamicsPrices.
 
 LMDB_AboutGeneral = Informazioni generali
 LMDB_AboutResources = Risorse
+
+LMDB_AboutVersion = Versione
+LMDB_AboutFamily = Famiglia
+LMDB_AboutModuleDescription = Descrizione
+LMDB_AboutMaintainer = Manutentore
+LMDB_AboutDocumentation = Documentazione
+LMDB_AboutDocumentationLink = Apri README
+LMDB_AboutSupport = Supporto
+LMDB_AboutSupportValue = Contattare il manutentore per il supporto.
+LMDB_AboutContact = Contatto
\ No newline at end of file