Here's Facebook's business help link for how to upload and use point of sale and other offline data: https://www.facebook.com/business/help/1142103235885551?id=

Here's Facebook's business help link for how to upload and use point of sale and other offline data: https://www.facebook.com/business/help/1142103235885551?id=565900110447546 https://www.facebook.com/business/help/1142103235885551?id=5...