> For the complete documentation index, see [llms.txt](https://help.wasapmatic.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.wasapmatic.com/contacts.md).

# Contacts

- [How To Validate WhatsApp Phone Numbers](https://help.wasapmatic.com/contacts/how-to-validate-whatsapp-phone-numbers.md)
- [How To Create Groups For Contacts](https://help.wasapmatic.com/contacts/how-to-create-groups-for-contacts.md)
- [How To Save Contacts To Group](https://help.wasapmatic.com/contacts/how-to-save-contacts-to-group.md)
- [How To Upload Contacts With Excel File](https://help.wasapmatic.com/contacts/how-to-upload-contacts-with-excel-file.md)