Posts under category Meta & Facebook

Hi, I'm facing an issue where custom audiences created via API through a web app I'm working on are not giving any results or spending any of the budget for the ads I post. If I compare such audiences created via API with audiences created in the Ads manager dashboard, they are exactly the same.
{ "name": "All Contacts from CRMs", "subtype": "CUSTOM", "data_source": { "type": "UNKNOWN", "sub_type": "ANYTHING", "creation_params": "[]" }, "delivery_status": { "code": 200, "description": "This audience is ready for use." }, "description": "", "id": "120207785863900200", "customer_file_source": "USER_PROVIDED_ONLY" }, This is an example of a typical custom audience created through the app

I have previously succeeded in retrieving IG Hashtags via the API and in downloading media related to this hashtag seach. Now I would like to get the media information via the IG Media request. However i am not able to get the IG Media and get the following error message:
{
"error": {
"message": "Unsupported get request. Object with ID 'xxxxxx' does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api",
"type": "GraphMethodException",
"code": 100,
"error_subcode": 33,
"fbtrace_id": "ADoNIVirUIhWV6N0kovAum9"
}
}
I got the ID "XXXXX" from the "ID" field in the IG Hashtag Recent Media request. So the media id should exist.
The permission should be sufficient too as I temporarily granted all possible permissions in order to exclude this potential error source.
Any idea what the problem could be? I found similar inquiries, but they were all unresolved, so I am reposting them.

We are having problems with Facebook previews, our service shortens a URL and upon click/tap performs a redirect to the real destination. At the moment, however, Facebook extracts the preview of some of our URLs, but not others. Honestly, I don't understand the underlying scheme. I did some checks with the Facebook debugger to try to understand what's happening and the debugger says: Bad Response Code - URL returned a bad HTTP response code. Response Code - 403
here is a URL that returns a preview: https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Fjo.my%2F6cwmjl
here instead is a URL configured in the same way that returns an error: https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Fjo.my%2Fhqd3n8