Why has a Purchase Order failed to sync to NetSuite?

Answer:

Purchase orders may have failed to sync due to one of the following issues:

1. The Purchase Order was paid with a Credit Card. Purchase Orders with credit card payments will be omitted from the sync. Ensure that the Pay with credit card field has not been selected. 
2. The credentials used for the sync are incorrect. Please follow the steps in this article to generate API Credentials. 
3. Purchase Order failed to sync due to custom field reasons. 
4. Purchase Order failed to sync due to Vendor reasons. 
5. Purchase Order failed to sync due to Account Code reasons.