I’m looking at making a 2-way integration to create items coming from a 3rd party system that exposes a pretty good REST API.
The job should run periodically and primarily copy data between erpnext and the other system. It needs to detect deltas for already existing items to update relevant properties.
What would be considered as the most mature integration written for erpnext today that can do 2-way mirroring of data incl. support for delta and error handling.