Stephen Sherrard

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That has never been part of my plugin, so your web guy must have made some custom code to do that.
There is no field in the database table for signups to store a timestamp for when the user signs up, so whoever coded that for you either stored that data in a separate table, or modified the existing signup table, along with adding functions to save/view that data and to retrieve it during export.

This content is restricted to buyers of:

• WooCommerce User Role Pricing
• WooCommerce Wholesale Ordering and User Role Pricing bundle
• WooCommerce Wholesale and User Role extensions bundle

This content is restricted to buyers of:

• WooCommerce User Role Pricing
• WooCommerce Wholesale Ordering and User Role Pricing bundle
• WooCommerce Wholesale and User Role extensions bundle

This content is restricted to buyers of:

• WooCommerce User Role Pricing
• WooCommerce Wholesale Ordering and User Role Pricing bundle
• WooCommerce Wholesale and User Role extensions bundle

This content is restricted to buyers of:

• WooCommerce User Role Minimums
• WooCommerce Wholesale and User Role extensions bundle

This content is restricted to buyers of:

• Woocommerce Wholesale Ordering
• WooCommerce Wholesale Ordering and User Role Pricing bundle
• WooCommerce Wholesale and User Role extensions bundle