For certain vendors that require an account number to appear in the Invoice Number field exceptions have been defined at the vendor level where different criteria can be used for specific vendors. This customized duplicate checking has been in place since 2007 and allows vouchers to be processed with a duplicate invoice ID if the invoice date is different. Effective 7/1/2015, vouchers to vendors with this custom set up will notify the processor with a warning message. This message will not prevent the processing of the voucher but should prompt the user to perform an additional review to prevent the possibility of a duplicate voucher/payment.

Please contact the Office of the State Comptroller Vendor File Unit with any questions at osc.apdvf@ct.gov .