Title: string-type oddity
Last modified: April 26, 2025

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# string-type oddity

 *  Resolved [Philippe Roussel](https://wordpress.org/support/users/ph59/)
 * (@ph59)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/string-type-oddity/)
 * Hi,
 * What does the following error message refer to: “Please do not add more than 
   one string-type (date/time, image, email, URL) column since only one can be used
   as a label”?
 * Thanks for your answer in plain English,
 * Philippe

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [Aleksandar Vuković](https://wordpress.org/support/users/aleksandartms/)
 * (@aleksandartms)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/string-type-oddity/#post-18440781)
 * Hi Philippe.
 * This message appears because when you’re creating a chart, the chart engines 
   we use only allow **one** string-type column (like date/time, image, email, or
   URL) to be used as a label.
 * All other columns that you include in the chart need to be **numerical values**(
   either integers or floats).
 * So if you have multiple string-type columns selected, you’ll need to keep just
   one (which will act as the label on your chart) and use numerical data for the
   others.
 * Hope that helps!
 *  Thread Starter [Philippe Roussel](https://wordpress.org/support/users/ph59/)
 * (@ph59)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/string-type-oddity/#post-18441030)
 * Hi,
 * Understood. Thank you.
 *  Plugin Support [Milos Jovanovic](https://wordpress.org/support/users/milosjovanovicwpdt/)
 * (@milosjovanovicwpdt)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/string-type-oddity/#post-18450982)
 * Hello,
 * You’re very welcome!
   If you have any other questions or run into issues, feel
   free to open a new support thread — we’re happy to help.
 * Thanks again.
 * Kind regards,
   Milos

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 3 participants
 * Last reply from: [Milos Jovanovic](https://wordpress.org/support/users/milosjovanovicwpdt/)
 * Last activity: [1 year, 1 month ago](https://wordpress.org/support/topic/string-type-oddity/#post-18450982)
 * Status: resolved