I am using custom taxonomy plugin. And I have custom Post type "Product".

When I am creating new taxonomy "home and garder Appliances Washin" and attaching it to Post or "Product" it's not registering with these while If I am adding just "home and garder Appliances Washi" and attaching with either Post or Product it is working fine.

Is there any length restriction when Creating Custom Taxonomies?


There are some restrictions (caused by lengths of some columns in database).


  • Taxonomy name - 32 characters
  • Term name (and term slug) - 200 characters


  • Post type name - 20 characters
  • Post name (slug) - 200 characters
  • Meta key - 255 characters


  • Option name - 64 characters


  • Commenter email - 100 characters
  • Commenter url - 200 characters
  • Comment meta key - 255 characters


  • User login - 60 characters
  • User nicename - 50 characters
  • User meta key - 255 characters
  • User email - 100 characters
  • User url - 100 characters
  • User display name - 250 characters

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