Yes, a meaningful promotion is a reasonable reason to send an updated resume, especially if it changes your title, scope or level of responsibility.

Keep the update simple. Send the recruiter the revised document and one sentence explaining that you were promoted after submitting the original application.

Do not use the update as an excuse to rewrite the entire resume or send multiple versions. The new resume should remain consistent with the application they already reviewed.

Make sure the new role is presented clearly and does not overstate work you have only just started. The consulting resume guide can help you keep the update concise and impact-focused.

I did this after a promotion and the recruiter just thanked me and added the new version to my file.