I used to hear that Microsoft developed a tool the auto posts Dynamics GP transactions, but I never saw anything like this, few days ago I needed such tool to fulfill an automatic integration requested by one of my clients.
The integration uses eConnect to integrate GP forms, and the customer wanted to auto post the transactions to eliminate human interaction, where I started my researches and found a tool with Microsoft that fulfill this request, its a tool developed using Continuum API to post GP transactions, but unfortunately I couldn’t use it due to the fact that GP must be opened and a user must be logged in.
However, the tool does exist, its not free but it worth's its price, at least you will not need to reinvent the wheel and develop such a thing, below what was written in its manual.
This DLL has the ability to several different types of posting methods. This DLL uses the Continuum API to call the posting processes in Great Plains. Because 99% of Great Plains posting code is written in Dexterity, Great Plains must be opened and the user logged into the appropriate company for this to work!
PostGLBatch- posts GL Batches entered in GL Transaction Entry window
PostIVTrxBatch – Post Inventory Trx Batches entered in the IV Item Transaction Entry window.
PostIVTransferBatch - Post Inventory Transfer Batches entered in the IV Item Transfer Entry window.
PostRMCash- posts a cash receipt batch entered from Cash Receipts Entry window
PostSOPBatch- posts a SOP batches entered in Sales Transaction Entry window
PostRecvBatch – posts a POP Receivings Transaction entered in the Receivings Transaction Entry window.
Hope that this helps.