@Morsink, Markus Thank you for reaching out to us, As I understand you want to leave an organization.
Just wanted to check if you have followed the steps mentioned here -
https://learn.microsoft.com/en-us/entra/external-id/leave-the-organization
If this doesn't help, let me know we can connect offline to discuss further on this.
Please send me an email to 'AzCommunity@microsoft.com' with Sub - Attn: Givary and following details in the email body:
Link to this thread/post
We can connect offline and discuss further on this.