Calculating and validating the number of containers in internal and external circulation in order to optimise and configure the container circulation, and informing the BU, customer or supplier accordingly Ensuring the supply of empties at the site by planning the customer and supplier empties taking into account the requirements, inventory and the numbers in internal/external circulation Ordering containers/cardboard boxes correctly and on time in order to ensure the supply to Production and the deliveries to the customer Identifying and implementing process optimisation measures relating to empties in order to ensure continuous improvements, working in coordination with the Manager Analysing deviations from the process in Container Management and initiating the relevant measures or corrections Checking and comparing internal container accounts with the customer and supplier documents/accounts Ensuring compliance with the CU specifications governing the use of standardised packaging Physically checking the inventory in the warehouse at regular intervals and comparing the results with the inventory quantities in SAP Checking the container posting transactions in SAP, incl. maintaining and checking the relevant master data and SAP parameters Posting invoices (rental, transportation, cleaning), checking invoices, managing and reconciling accounts Comparing the customer portals with the internal inventory tracking data for empties in order to create transparency and reduce additional container costs Other duties, as assigned