Adopt a secure document management procedure between numbering and posting; Define a clear procedure for the operation of accounting documents according to a precise chart of accounts with standards to be adhered to; Facilitate the relationship with the service provider by making yourself available and contactable as a customer to ensure the smooth operation of the service. Choose a service provider that meets certain criteria for successful outsourcing, such as: A service provider that is available, responsive and attentive, with a project manager handling your project The ability to handle seasonal peaks in activity; Availability of experts who know your industry of business; Reliability and respect for your internal processes and strict data security standards; Transparency in your billing plan: actual billing for hours worked.