@Ankit.K.Tiwari Yes, I am using the simulation mode, and it was working 100% before. After generating the CSID, I completed the onboarding process to generate the PCSID, and that was successful as well.
I am not using the Compliance Check API before reporting invoices — I only used it during the onboarding process to generate the PCSID.
Would you like me to share the token that is being sent when I try to report an invoice?