diff --git a/config_panel.json b/config_panel.json
index b4454ae..e605e61 100644
--- a/config_panel.json
+++ b/config_panel.json
@@ -42,6 +42,33 @@
 				"type": "bool",
 				"default": true
 			}]
+		},
+		{
+			"name": "PHP-FPM configuration",
+			"id": "php_fpm_config",
+			"options": [{
+				"name": "Memory footprint of the service ?",
+				"help": "low <= 20Mb per pool. medium between 20Mb and 40Mb per pool. high > 40Mb per pool. Use specific to set a value with the following option.\n<br>We can't use a choices field for now. In the meantime please choose between one of this values:\n<br>low, medium, high, specific.",
+				"id": "footprint",
+				"type": "text",
+				"//": "\"choices\" : [\"low\", \"medium\", \"high\", \"specific\"]",
+				"default" : "low"
+			},
+			{
+				"name": "Memory footprint of the service ?",
+				"help": "Free field to specify exactly the footprint in Mb if you don't want to use one of the three previous values.",
+				"id": "free_footprint",
+				"type": "number",
+				"default": 0
+			},
+			{
+				"name": "Expected usage of the service ?",
+				"help": "low: Personal usage, behind the sso. No RAM footprint when not used, but the impact on the processor can be high if many users are using the service.\n<br>medium: Low usage, few people or/and publicly accessible. Low RAM footprint, medium processor footprint when used.\n<br>high: High usage, frequently visited website. High RAM footprint, but lower on processor usage and quickly responding.\n<br>We can't use a choices field for now. In the meantime please choose between one of this values:\n<br>low, medium, high.",
+				"id": "usage",
+				"type": "text",
+				"//": "\"choices\" : [\"low\", \"medium\", \"high\"]",
+				"default" : "low"
+			}]
 		}]
 	}
 ]
diff --git a/scripts/_ynh_add_fpm_config b/scripts/_ynh_add_fpm_config
index 9d4dacf..8d36834 100644
--- a/scripts/_ynh_add_fpm_config
+++ b/scripts/_ynh_add_fpm_config
@@ -67,6 +67,10 @@ ynh_add_fpm_config () {
         ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file="$finalphpconf"
 
 	else
+        # Store settings
+        ynh_app_setting_set --app=$app --key=fpm_footprint --value=$footprint
+        ynh_app_setting_set --app=$app --key=fpm_usage --value=$usage
+
         # Usage 2, generate a php-fpm config file with ynh_get_scalable_phpfpm
         ynh_get_scalable_phpfpm --usage=$usage --footprint=$footprint
 
diff --git a/scripts/actions/public_private b/scripts/actions/public_private
index 5fb5c62..ebe0cc8 100755
--- a/scripts/actions/public_private
+++ b/scripts/actions/public_private
@@ -30,7 +30,7 @@ is_public_old=$(ynh_app_setting_get --app=$app --key=is_public)
 
 if [ $is_public -eq $is_public_old ]
 then
-	ynh_die --message="is_public is already set as $is_public." 0
+	ynh_die --message="is_public is already set as $is_public." --ret_code=0
 fi
 
 #=================================================
diff --git a/scripts/config b/scripts/config
index 66aea11..6615e6b 100644
--- a/scripts/config
+++ b/scripts/config
@@ -31,6 +31,7 @@ old_is_public="$(ynh_app_setting_get --app=$app --key=is_public)"
 old_is_public=$(bool_to_true_false $old_is_public)
 is_public="${YNH_CONFIG_MAIN_IS_PUBLIC_IS_PUBLIC:-$old_is_public}"
 
+
 # Overwrite nginx configuration
 old_overwrite_nginx="$(ynh_app_setting_get --app=$app --key=overwrite_nginx)"
 old_overwrite_nginx=$(bool_to_true_false $old_overwrite_nginx)
@@ -41,11 +42,32 @@ old_overwrite_phpfpm="$(ynh_app_setting_get --app=$app --key=overwrite_phpfpm)"
 old_overwrite_phpfpm=$(bool_to_true_false $old_overwrite_phpfpm)
 overwrite_phpfpm="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_PHPFPM:-$old_overwrite_phpfpm}"
 
+
 # Type of admin mail configuration
 old_admin_mail_html="$(ynh_app_setting_get --app=$app --key=admin_mail_html)"
 old_admin_mail_html=$(bool_to_true_false $old_admin_mail_html)
 admin_mail_html="${YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE:-$old_admin_mail_html}"
 
+
+# Footprint for php-fpm
+old_fpm_footprint="$(ynh_app_setting_get --app=$app --key=fpm_footprint)"
+fpm_footprint="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FOOTPRINT:-$old_fpm_footprint}"
+
+# Free footprint value for php-fpm
+# Check if fpm_footprint is an integer
+if [ "$fpm_footprint" -eq "$fpm_footprint" ] 2> /dev/null
+then
+    # If fpm_footprint is an integer, that's a numeric value for the footprint
+    old_free_footprint=$fpm_footprint
+else
+    old_free_footprint=0
+fi
+free_footprint="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FREE_FOOTPRINT:-$old_free_footprint}"
+
+# Usage for php-fpm
+old_fpm_usage="$(ynh_app_setting_get --app=$app --key=fpm_usage)"
+fpm_usage="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_USAGE:-$old_fpm_usage}"
+
 #=================================================
 # SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
 #=================================================
@@ -60,6 +82,10 @@ show_config() {
 	echo "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_PHPFPM=$overwrite_phpfpm"
 
 	echo "YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE=$admin_mail_html"
+
+	echo "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FOOTPRINT=$fpm_footprint"
+	echo "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FREE_FOOTPRINT=$free_footprint"
+	echo "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_USAGE=$fpm_usage"
 }
 
 #=================================================
@@ -85,6 +111,9 @@ apply_config() {
 	# Set admin_mail_html
 	admin_mail_html=$(bool_to_01 $admin_mail_html)
 	ynh_app_setting_set --app=$app --key=admin_mail_html --value="$admin_mail_html"
+
+	# Reconfigure php-fpm
+	config-panel_scripts/configure_php_fpm --fpm_usage=$fpm_usage --fpm_footprint=$fpm_footprint
 }
 
 #=================================================
diff --git a/scripts/config-panel_scripts/configure_php_fpm b/scripts/config-panel_scripts/configure_php_fpm
new file mode 100755
index 0000000..abaf34e
--- /dev/null
+++ b/scripts/config-panel_scripts/configure_php_fpm
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+#=================================================
+# GENERIC STARTING
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+source _ynh_add_fpm_config
+
+#=================================================
+# RETRIEVE ARGUMENTS
+#=================================================
+
+fpm_usage=""
+fpm_footprint=""
+get_arguments () {
+    # Use ynh_handle_getopts_args into a function to not interfere with $args_array from helpers.
+    legacy_args=uf
+    # Declare an array to define the arguments
+    declare -Ar args_array=( [u]=fpm_usage= [f]=fpm_footprint= )
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+}
+get_arguments "$@"
+
+app=${YNH_APP_INSTANCE_NAME:-$YNH_APP_ID}
+
+#=================================================
+# CHECK IF AN ACTION HAS TO BE DONE
+#=================================================
+
+old_fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
+old_fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
+
+if [ "$fpm_usage" == "$old_fpm_usage" ] && [ "$fpm_footprint" == "$old_fpm_footprint" ]
+then
+	ynh_die --message="Nothing to change in PHP configuration." --ret_code=0
+fi
+
+#=================================================
+# SPECIFIC ACTION
+#=================================================
+# RECONFIGURE PHP-FPM CONFIGURATION
+#=================================================
+
+ynh_script_progression --message="Reconfiguring PHP-FPM configuration..." --weight=3
+
+ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Execution completed" --last
diff --git a/scripts/upgrade b/scripts/upgrade
index a10245a..8e6a0e8 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -29,6 +29,9 @@ overwrite_nginx=$(ynh_app_setting_get --app=$app --key=overwrite_nginx)
 overwrite_phpfpm=$(ynh_app_setting_get --app=$app --key=overwrite_phpfpm)
 admin_mail_html=$(ynh_app_setting_get --app=$app --key=admin_mail_html)
 
+fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
+fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
+
 #=================================================
 # CHECK VERSION
 #=================================================
@@ -161,7 +164,7 @@ if [ $overwrite_phpfpm -eq 1 ]
 then
 	ynh_script_progression --message="Upgrading php-fpm configuration..." --weight=2
 	# Create a dedicated php-fpm config
-	ynh_add_fpm_config --usage=low --footprint=low
+	ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
 fi
 
 #=================================================