We have deployed Magento 2.4.2 (community edition). We need to set up API access token so that we can use REST api calls to read catalog data. For this we use: System -> Integrations -> Add New Integration. That works fine.
However, when we try to "Activate" that integration (Activate -> Allow), we get error "Something went wrong" (screen capture attached). We have not seen this issue in a Magento 2.4.0 installation.
What do we need to configure so that we can successfully set up API-access-token using Magento 2.4.2 ?
Did you try this?
Also can you please confirm you are making changes with admin full rights user?