Unable to Retrieve Instagram DMs via API for Professional Account [クローズ済み]

I am experiencing an issue with retrieving Direct Messages (DMs) for my Instagram Professional account using the API. Here are the details of my problem:

1.  Current Situation:
  - I can successfully retrieve Messenger conversations.
  - However, I am unable to retrieve DMs from my Instagram account.

2.  Account Details:
  - I am using an Instagram Professional account.
  - To the best of my knowledge, I have all the necessary permissions set up correctly.

3.  Expected Outcome:
  - I should be able to retrieve both Messenger conversations and Instagram DMs through the API.
4.  Specific Questions:
  - Is there a known issue with retrieving Instagram DMs via the API for Professional accounts?
  - Are there any additional permissions or settings I need to configure to access Instagram DMs?

Can you provide guidance on how to troubleshoot this issue?
I would greatly appreciate your assistance in resolving this matter. If you need any additional information or clarification, please don’t hesitate to ask.

よろしくお願いします。