1) Yes, I first create the post and get the post ID. And then pass it down to the fields.
2) Ah, that’s a good point. So you mean that if the fields do not exist, then we must use field key (e.g., field_1231231) instead of the field name (e.g., _products)? However, my client is how do I get the field key programmatically by providing the field name? if possible at all?
Sorry, I confused field key with field name. Yes, field keys (e.g., field_123123) are unique throughout the site in all field groups. Only field names (e.g., _products) are being used in multiple field groups.
