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Schema validation warning

WARNING: 12200

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Schema validation warning

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The provided XML does not conform to the Twilio Markup XML schema. Please refer to the specific error and correct the problem.

  • Misspelled verbs
  • Incorrect case for verbs; TwiML is case-sensitive, so <Say> works, but <say> will not
  • Misspelled or unknown attributes
  • Unknown or unexpected nested elements.

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