The objective of this thesis project was to enable the transfer of a new customer Itella Logistic Oy to the database of Toijala unit. In the work the aim was to explore the ProWeb-interface through which warehousing was handled before the change. The required properties had to be picked from the program and transferred to the Proteus warehouse management system that the Toijala warehouse is using.

The work also included other changes required by the change of the database, such as renumbering shelf locations and fixing the balance. The work also consisted of testing the new system and a follow-up of the experiences and problems that appeared after the change. New menus of Proteus-software are presented the new features there are described in this thesis.

As a result, the change was made in the database. This change, however, was only a step towards the new warehouse management software of the future. All functions were not transferred and if these functions are laborious and expensive to perform, I do not think they will be realised. The most necessary functions were transferred, however, and the use of Proteus is now possible.