30436: Invalid Phone Number SID

This error occurs when the tollfreePhoneNumberSid value in a toll-free verification request isn't a valid phone number SID for your account. Use the PN SID of the toll-free IncomingPhoneNumber resource associated with the verification request.

• The phone number SID doesn't exist or doesn't belong to your account.
• The phone number SID isn't a 34-character string with the PN prefix.
• The request uses a SID that isn't the phone number resource linked to the toll-free verification submission.

• Set tollfreePhoneNumberSid to the SID of a toll-free number you own in the same account that submits the verification request.
• Confirm that the SID starts with PN and contains 34 characters before you submit the request.
• Fetch or list your IncomingPhoneNumber resources, copy the correct sid value for the toll-free number, and retry the request with that SID.

• Toll-free verification resource
• Get started with toll-free verification using the API
• IncomingPhoneNumber resource