Administrative Assistant Vacancy - Create purchase requisitions in SAP; "Request possible adjustments to purchase orders from Supplies: Shipping date, VAT adjustment, service code adjustment, etc." Receive and control the receipt of invoices (monthly, in the case of contracts or one-off); Contact the supplier to request an invoice or discrepancies in scope and value; Create a service sheet for service invoices; Create the MIGO for material invoices; Send invoices for inbound and monitor their incorporation into the system; Make the invoice entry via cockpit or forward it via e-mail to the Finance Department (exceptions); Monitor the entries of invoices by FC; Request the payment forecast and proof of payment of the invoice (if applicable) from the Finance Department and send it to the supplier; Support in the consolidation of IT CAPEX and OPEX budgets; Prepare monthly OPEX or CAPEX provisions; Consolidate the monthly budget justifications for Financial Planning; Perform budget analyses for departments; Prepare and deliver debit notes for subsidiaries; Prepare and deliver monthly information for IT distribution for subsidiaries; Make contractual adjustments based on information provided by the Department; Administrative and financial management of contracts (values, terms and contractual adjustments); Issue PTR (Request for Transfer of OPEX and CAPEX Resources); Request registration or adjustment of supplier information in SAP; Request registration or adjustment of materials; Request and update the NCM of the DANFE material invoice; Create the purchase planning spreadsheet and participate in monthly meetings; Monitor the processes of contracting goods and services by participating in follow-up meetings; Request investment orders (CAPEX) to issue purchase requisitions; Map orders (investments) in progress and issue the RUC (fixed assets) for depreciation of the asset.