The issue is customer is getting error when posting order/invoice with an posting description longer than 20 characters.
The environment is NAV 2009 SP1
The resolution is implemented Connect-437
Note: AvaTax for Microsoft Dynamics NAV 2009 is sunsetted and no longer supported by Avalara as of April 30, 2016. This existing knowledge base documentation is available to provide known paths to resolution for documented issues. If you are using a version affected by service discontinuation and want to maintain access to Avalara Support, you’ll need to upgrade to the latest version of the integration as soon as possible
The cause is...