How can I uninstall Mailchimp?

@tjtj

How to clean up invalid permissions

If you manage configuration of your site on the file system, you can manually delete the mailchimp related permissions from user.role.*.yml files. After the change, you import that configuration on your site.

If you do not manage configuration on the file system, then you can do the following:

1. Install the module "Configuration Manager" (part of Drupal Core).
2. Go to Administration > Configuration > Development > Configuration synchronization > Export > Single item (/admin/config/development/configuration/single/export).
3. For "Configuration type", choose "Role".
4. For "Configuration name", choose the role with mailchimp permissions still on it. If there are multiple, repeat step 2 to 10 for each role.
5. In the field "Here is your configuration:", remove the mailchimp related permission from the list.
6. Copy the data from the "Here is your configuration:" field.
7. Now go to Import > Single Item (/admin/config/development/configuration/single/import).
8. For "Configuration type", choose "Role".
9. Paste the configuration in the "Paste your configuration here" field.
10. Click "Import".

Hi MegaChris,
thanks for this howto. Did extacly that plus had to deactivate the textformat mailchimp.

SO now finally I could comletely uninstall mailchimp modules.

THANK YOU !!!!!!!