verification codes

Go to Settings/Messages/Unknown & Spam and try disabling Filter Unknown Senders. Or open the Messages app, tap on Filters at the top left if you see it, and tap All Messages.

derwin128 wrote:

Since upgrading to the IPhone pro max 13 I have been unable to receive text message verification codes from any other company product other that apple. How can I resolve this issue.

SMS is a phone carrier feature, contact yours to resolve the issue.