Abstract: The present disclosure relates to a method performed by a processing device (4) of a Work Force Management (WFM) system (1) for predicting timely completion of a work order for service at a remote site (3) of a telecommunication system (2). The method comprises obtaining information about a time period allowed for completion of the work order. The method also comprises selecting, based on previous knowledge about the remote site, a set of factors which may affect service at the remote site. The method also comprises updating information about the selected factors. The method also comprises, at a first point in time within the allowed time period, obtaining information about a current status of the work order. The method also comprises, based on the updated information and the work order status at said first point of time, predicting whether it is likely that the work order will be completed within the allowed time period.