diff --git a/Kernel/System/ProcessManagement/TransitionAction/TicketPrioritySet.pm b/Kernel/System/ProcessManagement/TransitionAction/TicketPrioritySet.pm
new file mode 100644
index 0000000000..20e7a437aa
--- /dev/null
+++ b/Kernel/System/ProcessManagement/TransitionAction/TicketPrioritySet.pm
@@ -0,0 +1,189 @@
+# --
+# OTOBO is a web-based ticketing system for service organisations.
+# --
+# Copyright (C) 2001-2020 OTRS AG, https://otrs.com/
+# Copyright (C) 2019-2024 Rother OSS GmbH, https://otobo.de/
+# --
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later version.
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+# --
+
+package Kernel::System::ProcessManagement::TransitionAction::TicketPrioritySet;
+
+use strict;
+use warnings;
+use utf8;
+
+use Kernel::System::VariableCheck qw(:all);
+
+use parent qw(Kernel::System::ProcessManagement::TransitionAction::Base);
+
+our @ObjectDependencies = (
+    'Kernel::System::Log',
+    'Kernel::System::Ticket',
+);
+
+=head1 NAME
+
+Kernel::System::ProcessManagement::TransitionAction::TicketPrioritySet - A Module to set the priority of a Ticket
+
+=head1 DESCRIPTION
+
+All TicketPrioritySet functions.
+
+=head1 PUBLIC INTERFACE
+
+=head2 new()
+
+Don't use the constructor directly, use the ObjectManager instead:
+
+    my $TicketPrioritySetObject = $Kernel::OM->Get('Kernel::System::ProcessManagement::TransitionAction::TicketPrioritySet');
+
+=cut
+
+sub new {
+    my ( $Type, %Param ) = @_;
+
+    # allocate new hash for object
+    my $Self = {};
+    bless( $Self, $Type );
+
+    return $Self;
+}
+
+=head2 Params()
+
+Returns the configuration params for this transition action module
+
+    my @Params = $Object->Params();
+
+Each element is a hash reference that describes the config parameter.
+Currently only the keys I<Key>, I<Value> and I<Optional> are used.
+
+=cut
+
+sub Params {
+    my ($Self) = @_;
+
+    my @Params = (
+        {
+            Key   => 'Priority',
+            Value => 'PriorityName (required)',
+        },
+        {
+            Key      => 'UserID',
+            Value    => '1 (can overwrite the logged in user)',
+            Optional => 1,
+        },
+    );
+
+    return @Params;
+}
+
+=head2 Run()
+
+    Run Data
+
+    my $TicketPrioritySetResult = $TicketPrioritySetActionObject->Run(
+        UserID                   => 123,
+        Ticket                   => \%Ticket,   # required
+        ProcessEntityID          => 'P123',
+        ActivityEntityID         => 'A123',
+        TransitionEntityID       => 'T123',
+        TransitionActionEntityID => 'TA123',
+        Config                   => {
+            Priority  => 'MyPriority',
+            # or
+            PriorityID => 123,
+            UserID     => 123,                      # optional, to override the UserID from the logged user
+
+        }
+    );
+    Ticket contains the result of TicketGet including DynamicFields
+    Config is the Config Hash stored in a Process::TransitionAction's  Config key
+    Returns:
+
+    $TicketPrioritySetResult = 1; # 0
+
+=cut
+
+sub Run {
+    my ( $Self, %Param ) = @_;
+
+    # define a common message to output in case of any error
+    my $CommonMessage = "Process: $Param{ProcessEntityID} Activity: $Param{ActivityEntityID}"
+        . " Transition: $Param{TransitionEntityID}"
+        . " TransitionAction: $Param{TransitionActionEntityID} - ";
+
+    # check for missing or wrong params
+    my $Success = $Self->_CheckParams(
+        %Param,
+        CommonMessage => $CommonMessage,
+    );
+    return if !$Success;
+
+    # override UserID if specified as a parameter in the TA config
+    $Param{UserID} = $Self->_OverrideUserID(%Param);
+
+    # use ticket attributes if needed
+    $Self->_ReplaceTicketAttributes(%Param);
+    $Self->_ReplaceAdditionalAttributes(%Param);
+
+    if ( !$Param{Config}->{PriorityID} && !$Param{Config}->{Priority} ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => $CommonMessage . "No Priority or PriorityID configured!",
+        );
+        return;
+    }
+
+    $Success = 0;
+    if (
+        defined $Param{Config}->{Priority}
+        && $Param{Config}->{Priority} ne $Param{Ticket}->{Priority}
+        )
+    {
+        $Success = $Kernel::OM->Get('Kernel::System::Ticket')->TicketPrioritySet(
+            Priority => $Param{Config}->{Priority},
+            TicketID => $Param{Ticket}->{TicketID},
+            UserID   => $Param{UserID},
+        );
+    }
+
+    elsif (
+            defined $Param{Config}->{PriorityID}
+            && $Param{Config}->{PriorityID} ne $Param{Ticket}->{PriorityID}
+        )
+    {
+        $Success = $Kernel::OM->Get('Kernel::System::Ticket')->TicketPrioritySet(
+            PriorityID => $Param{Config}->{PriorityID},
+            TicketID => $Param{Ticket}->{TicketID},
+            UserID   => $Param{UserID},
+        );
+    }
+
+    else {
+        # data is the same as in ticket nothing to do
+        $Success = 1;
+    }
+
+    if ( !$Success ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => $CommonMessage
+                . 'Ticket priority could not be updated for Ticket: '
+                . $Param{Ticket}->{TicketID} . '!',
+        );
+        return;
+    }
+
+    return 1;
+}
+
+1;