Embodiments herein relate to a method performed in a first network node for handling one or more signaling procedures of a wireless device in a wireless communication network. The first network node, receiving a first message from a second network node indicating an initiation of a signaling procedure for the wireless device; selecting a processing module for handling the signaling procedure; retrieving context of the wireless device; storing the retrieved context on the selected processing module; assigning a TRID to the signaling procedure, pointing to the selected processing module, which TRID being valid for an interval; and transmitting a second message to the second network node and/or another network node, which second message is associated with the signaling procedure and comprises the assigned TRID.