> For the complete documentation index, see [llms.txt](https://docs.magecomp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.magecomp.com/magento-2-mobile-login-extension/copy-mobile-numbers-of-existing-customers.md).

# Copy Mobile Numbers of Existing Customers

<figure><img src="https://807210804-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8wMgNeFnYjVGQmgdxMv4%2Fuploads%2FG30RFprI8Q1Aum6QPFTh%2Fimage.png?alt=media&amp;token=9b4b2cf0-78a3-42ab-818d-df75d9f53b2a" alt=""><figcaption></figcaption></figure>

This feature will help the store owner to copy all their existing customer’s phone numbers from default Magento phone number field to our extension mobile number field.