I'm planning an ERP - Magento integration.
I know that Magento has his own API that I can use it when some changes occurs in our ERP. For example, product catalog updates, new customers, etc... that part is easy, just use Magento API in our ERP code... (please correct me if i'm wrong).
This covers ERP to Magento sync. But what happens with Magento to ERP sync?
For example, I would like that when a sell occurs Magento make a POST to my ERP API telling, what client, and which products are sold.
Another example, a customer updates his phone in magento. ¿How I can sync that change with my ERP?