[INVALID_KEY_OR_REF] [ Invalid price reference key -1 for item <NULL>.]
This error is returned when a particular product on the opportunity is not yet synced/available in NetSuite.
Steps To Resolve Error
- Get the NetSuite Internal ID of the product/item in NetSuite.
- Enter the NetSuite Internal ID value on the corresponding Salesforce product's NetSuite Internal ID field.
- Re-push the opportunity.