ERP Integration using C#/Windows Application

I need to insert some fields of data (example: Customer Phone etc) from outside(Externally) into the already developed/working (Installed) ERP Invoicing application. When I open the ERP application those fields should automatically appear in the application for the particular order in the form. Currently the the external data is entering manually into the ERP application. I need to integrate from the different place to ERP Application using some another appl开发者_StackOverflow中文版ication, like C# Windows Application. We can access ERP database. How can I approach this for the solution to the problem using C#/windows application externally.

I am not sure what approach you used for Integration, but as it seems from your question that you have enough knowledge about their database structure and flow of data you can directly write to the tables to reflect the updated information in that ERP.

But this is not a recommended approach to integrate with any ERP, by directly interacting to their database tables, even if you have access to them and you very well understand the data flow. Integration to any ERP should only be done through API's provided by that ERP, or through some connectors available in market which are recommended by the ERP vendor.

You should look for an API or interface your ERP application provides to integrate external applications and/or modules, otherwise, if you have enough knowledge of how this ERP works and underlying database structure, than you can directly interact with the data...