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E04057 — ContactPhoneInvalid

This does not look like a phone number. Send the international form, a leading plus sign, then the country code and number, for example +31612345678.
  • HTTP status: 422
  • Type: validation_error
  • Name: ContactPhoneInvalid

What to do

Send the number in international E.164 form. Bird checks only the E.164 shape, never whether a number is currently assigned or known to numbering-plan metadata.