diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index bd19293ae43..e768552d8f4 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -2293,6 +2293,8 @@ class Facture extends CommonInvoice
 	 *  Tag the invoice as paid completely (if close_code is filled) => this->fk_statut=2, this->paye=1
 	 *  or partialy (if close_code filled) + appel trigger BILL_PAYED => this->fk_statut=2, this->paye stay 0
 	 *
+	 *	@deprecated
+	 *  @see setPaid()
 	 *  @param	User	$user      	Object user that modify
 	 *	@param  string	$close_code	Code renseigne si on classe a payee completement alors que paiement incomplet (cas escompte par exemple)
 	 *	@param  string	$close_note	Commentaire renseigne si on classe a payee alors que paiement incomplet (cas escompte par exemple)
@@ -2302,7 +2304,7 @@ class Facture extends CommonInvoice
 	{
 		// phpcs:enable
 		dol_syslog(get_class($this)."::set_paid is deprecated, use setPaid instead", LOG_NOTICE);
-		$this->setPaid($user, $close_code, $close_note);
+		return $this->setPaid($user, $close_code, $close_note);
 	}
 
 	/**
@@ -2376,7 +2378,7 @@ class Facture extends CommonInvoice
 	{
 		// phpcs:enable
 		dol_syslog(get_class($this)."::set_unpaid is deprecated, use setUnpaid instead", LOG_NOTICE);
-		$this->setUnpaid($user);
+		return $this->setUnpaid($user);
 	}
 
 	/**
diff --git a/htdocs/fourn/class/fournisseur.facture.class.php b/htdocs/fourn/class/fournisseur.facture.class.php
index 83408d9ba6c..56151d661f9 100644
--- a/htdocs/fourn/class/fournisseur.facture.class.php
+++ b/htdocs/fourn/class/fournisseur.facture.class.php
@@ -1250,6 +1250,8 @@ class FactureFournisseur extends CommonInvoice
 	/**
 	 *  Tag invoice as a paid invoice
 	 *
+	 *	@deprecated
+	 *  @see setPaid()
 	 *	@param  User	$user       Object user
 	 *	@param  string	$close_code	Code indicates whether the class has paid in full while payment is incomplete. Not implementd yet.
 	 *	@param  string	$close_note	Comment informs if the class has been paid while payment is incomplete. Not implementd yet.
@@ -1258,6 +1260,20 @@ class FactureFournisseur extends CommonInvoice
 	public function set_paid($user, $close_code = '', $close_note = '')
 	{
 		// phpcs:enable
+		dol_syslog(get_class($this)."::set_paid is deprecated, use setPaid instead", LOG_NOTICE);
+		$this->setPaid($user, $close_code, $close_note);
+	}
+
+	/**
+	 *  Tag invoice as a paid invoice
+	 *
+	 *	@param  User	$user       Object user
+	 *	@param  string	$close_code	Code indicates whether the class has paid in full while payment is incomplete. Not implementd yet.
+	 *	@param  string	$close_note	Comment informs if the class has been paid while payment is incomplete. Not implementd yet.
+	 *	@return int         		<0 si ko, >0 si ok
+	 */
+	public function setPaid($user, $close_code = '', $close_note = '')
+	{
 		global $conf, $langs;
 		$error = 0;
 
@@ -1291,8 +1307,24 @@ class FactureFournisseur extends CommonInvoice
 		}
 	}
 
-
 	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
+	/**
+	 *	Tag the invoice as not fully paid + trigger call BILL_UNPAYED
+	 *	Function used when a direct debit payment is refused,
+	 *	or when the invoice was canceled and reopened.
+	 *
+	 *	@deprecated
+	 *  @see setUnpaid()
+	 *	@param      User	$user       Object user that change status
+	 *	@return     int         		<0 si ok, >0 si ok
+	 */
+	public function set_unpaid($user)
+	{
+		// phpcs:enable
+		dol_syslog(get_class($this)."::set_unpaid is deprecated, use setUnpaid instead", LOG_NOTICE);
+		$this->setUnpaid($user);
+	}
+
 	/**
 	 *	Tag the invoice as not fully paid + trigger call BILL_UNPAYED
 	 *	Function used when a direct debit payment is refused,
@@ -1301,9 +1333,8 @@ class FactureFournisseur extends CommonInvoice
 	 *	@param      User	$user       Object user that change status
 	 *	@return     int         		<0 si ok, >0 si ok
 	 */
-	public function set_unpaid($user)
+	public function setUnpaid($user)
 	{
-		// phpcs:enable
 		global $conf, $langs;
 		$error = 0;
 
diff --git a/htdocs/loan/class/loan.class.php b/htdocs/loan/class/loan.class.php
index cf4a0c876ea..9f2d8297edc 100644
--- a/htdocs/loan/class/loan.class.php
+++ b/htdocs/loan/class/loan.class.php
@@ -388,7 +388,7 @@ class Loan extends CommonObject
 	{
 		// phpcs:enable
 		dol_syslog(get_class($this)."::set_paid is deprecated, use setPaid instead", LOG_NOTICE);
-		$this->setPaid($user);
+		return $this->setPaid($user);
 	}
 
 	/**
@@ -424,7 +424,7 @@ class Loan extends CommonObject
 	{
 		// phpcs:enable
 		dol_syslog(get_class($this)."::set_started is deprecated, use setStarted instead", LOG_NOTICE);
-		$this->setStarted($user);
+		return $this->setStarted($user);
 	}
 
 	/**
@@ -459,7 +459,7 @@ class Loan extends CommonObject
 	{
 		// phpcs:enable
 		dol_syslog(get_class($this)."::set_unpaid is deprecated, use setUnpaid instead", LOG_NOTICE);
-		$this->setUnpaid($user);
+		return $this->setUnpaid($user);
 	}
 
 	/**
diff --git a/htdocs/loan/class/paymentloan.class.php b/htdocs/loan/class/paymentloan.class.php
index 3e32456fb28..aa3f895f314 100644
--- a/htdocs/loan/class/paymentloan.class.php
+++ b/htdocs/loan/class/paymentloan.class.php
@@ -531,7 +531,7 @@ class PaymentLoan extends CommonObject
 			if ($loan->paid == $loan::STATUS_UNPAID)
 			{
 				dol_syslog(get_class($this)."::addPaymentToBank : set loan payment to started", LOG_DEBUG);
-				if ($loan->set_started($user) < 1)
+				if ($loan->setStarted($user) < 1)
 				{
 					$error++;
 					dol_print_error($this->db);