Connecting Sophos SMC to DEP - Token is not valid

We try to connect our Sophos SMC to our Apple DEP.

In the past we had other MDM Servers successfully connected to our Apple DEP, but now with Sophos there seems to be a problem.

There is no problem downloading the public key and uploading it to Apple Business, but when i then download the token from apple business and upload it to Sophos SCM I get the following error message:

Translated it means that they can't request the account data. The token has the correct format but is not valid.

I don't see any way where I can influence this process so I don't know how to solve this issues.

 

We are currently using SMC Server-Version: 9.5.2 (rev 19162).

Thank you very much.