We have multiple payrolls using one PAYE ref across different systems. There are over 3,000 workers across all with 250 of those on Sage. Sage is the only one that doesn't mass update the HMRC notifications from the HMRC mailbox. It takes an age for me to go through individually and update workers one at a time (when 80% of them aren't in sage). It would be really beneficial to be able to mass update the tax codes and RTI notices then generating a report of those that have been applied/errored. The other systems we use are Tempaid and Pay & Bill which do this en mass.