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E15004 — WhatsAppTemplateSlugInvalid

The template slug must contain only lowercase letters, digits, hyphens and underscores, start and end with a letter or digit, and be no more than 63 characters long.

  • HTTP status: 422
  • Type: validation_error
  • Name: WhatsAppTemplateSlugInvalid

What to do

Rewrite the slug using only lowercase letters, digits, hyphens and underscores, starting and ending with a letter or digit, keeping it to 63 characters or fewer, then create the template again. The slug is permanent. It is the handle you send with.