We switched to Unanet A/E after running a proprietary invoicing system for 10+ years. Mary and Paul from OAS assisted our team over the past 10 months, from general learning and training to creative solutions to address our unique business practices and OAS delivered. Thanks to our internal IT department and OAS, we were able to go live with very few surprises. Unanet A/E has allowed us to bring 3 external invoicing and accounting systems under one umbrella and OAS was instrumental in making this happen. Thank you, Mary and Paul, for excellent and responsive training and support.