Title: Custom table prefix
Last modified: August 26, 2025

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# Custom table prefix

 *  Resolved [chelminski](https://wordpress.org/support/users/chelminski/)
 * (@chelminski)
 * [9 months, 2 weeks ago](https://wordpress.org/support/topic/custom-table-prefix/)
 * Hi :D,
 * We are using the psmsc plugin across multiple WordPress installations that need
   to share the same helpdesk data. Currently, the plugin automatically prepends
   the WordPress site prefix to its tables, resulting in table names like site1_psmsc_…,
   site2_psmsc_…, etc. This makes it impossible to use the same tables across different
   sites.
 * We would like to request an optional feature in the plugin to:
 * Remove the WordPress site prefix from the plugin tables entirely, so all installations
   can use the same tables (e.g., psmsc_messages, psmsc_tickets).
 * Allow changing the plugin prefix (psmsc_) to a custom value if needed.
 * This optional setting would give full control over table naming and make it possible
   to synchronize helpdesk data across multiple WordPress sites while maintaining
   flexibility.
 * Thank you for considering this improvement.
 * Greetings,
   Dawid

Viewing 1 replies (of 1 total)

 *  [miliighe](https://wordpress.org/support/users/miliighe/)
 * (@miliighe)
 * [9 months, 1 week ago](https://wordpress.org/support/topic/custom-table-prefix/#post-18621978)
 * Hi Dawid,
 * Thank you for your detailed, developer-focused question.
 * To answer your question directly, what you are asking for is not possible within
   the WordPress architecture.
 * In a Multisite environment, **WordPress itself** automatically prepends a unique
   prefix (which includes the `blog_id`, e.g., `wp_2_`, `wp_3_`) to the database
   tables for each individual sub-site. This is a core function of WordPress designed
   to keep each site’s data separate and is not something that a plugin can edit
   or change.
 * Because our plugin must adhere to these WordPress standards, we cannot offer 
   an option to remove the site prefix to share tables across different sites.
 * I hope this clarifies the technical reason for this limitation.

Viewing 1 replies (of 1 total)

The topic ‘Custom table prefix’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [miliighe](https://wordpress.org/support/users/miliighe/)
 * Last activity: [9 months, 1 week ago](https://wordpress.org/support/topic/custom-table-prefix/#post-18621978)
 * Status: resolved