Authentication Problem: invalid_scope Error

Using to authorize some esi requests. Worked perfectly fine up to now.

Today i added “esi-corporations.read_blueprints.v1” to the list of scopes and from that moment on i get the following error when trying to authenticate:

{“error”:“invalid_scope”,“error_description”:“The requested ‘esi-corporations.read_blueprints.v1’ scope is not valid.”}

Any help what i am doing wrong?

Found the answer. Just in case anybody gets into the same problem i post the solution:

Forgott to change my application settings at


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