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403 Forbidden using /fscmRestApi/resources/11.13.18.05/assignmentSets/

edited Jan 16, 2026 9:51PM in Order Management

Summary:

I am trying to use this API, but always get a 403 Forbiden error.

Content (please ensure you mask any confidential information):

We are trying to obtain assignment set details for a given customer/customer site so we can determine with sourcing rule has been assigned, but this API returns a 403 Forbidden. I've tried it with multiple credentials, all of which have full access to the Assignment Set lines, but I continue to get the error. I've also tried it by specifying the assignment id, but I continue to get this error. Has anyone successfully used this API or found another way to obtain assignment set details via API?

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