There is a definite trend for multi-nationals to move away from managing in house software solutions because of the maintenance difficulties imposed by the changing legislation in Brazil.  Many companies looked at Brazil Nota Fiscal over the past few years as just another invoice process and compliance solution that could be managed by internal staff. However, as more organization move business processes into shared services and look to consolidate on single instances or regional instances of ERP, they are finding that the true cost of ownership is extremely high.  Below are the two most common themes I see when speaking with customers looking to move away from an on premise Nota Fiscal solution:

1. Organizations have grown through acquisitions in Latin America, especially in Brazil over the past 5 years.  Many of these companies that were acquired also ran an ERP, but companies found themselves supporting multiple instances.  As the IT team took on consolidation, they often realized that moving Brazil into a shared instance immediately opened their eyes to the real support costs of Nota Fiscal. It was not the XML schema or the web service connection – the real cost was due to the amount of changes coming from the government and the effect these changes had on ERP configuration.  Rather than maintaining multiple FTE to research the changes, research how they should be implemented inside of ERP, and manage the constant flow of ERP upgrades; organizations have been turning to providers that eliminate this in-house problem.  They have been turning to managed services that monitor the changes, understand how to implement them in ERP, and guarantee ongoing compliance of the ERP system and process under a fixed annual fee. 
2. Another reason organizations are moving away from in house solutions is the regional expansion of compulsory electronic invoicing throughout Latin America.  Most on premise software implementations only handle one country, leaving a global ERP team to manage multiple vendors in multiple countries.  Supporting multiple FTE for day to day support, multiple boxes, multiple integration brokers, and a multitude of country specific solutions adds up to hundreds of thousands of dollars when viewed in the aggregate.  A regional approach not only frees up IT budget, a regional approach also frees up needed IT resources. It is much more beneficial to have resources working on new value added projects rather than maintenance of a country process.

More simply stated: companies are moving to managed services because of the out of control cost to service the internal deployment day to day and more importantly manage the ongoing changes that happen every year.