Opt-in Confirmation Msg Missing

Why This Rejection Happens

You failed to provide an Opt-in Confirmation Message entirely. This is the field that defines what happens when a user texts "START" or subscribes via a web form.

Root Cause Analysis

The Fix

Fill in the "Opt-in Confirmation Message" field with a compliant template.

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What reviewers check for code 6006

The opt-in confirmation message is the first text sent after someone joins. Carriers require it to confirm the enrollment and restate the program terms, because it is the subscriber's written record of what they agreed to. Reviewers check the sample confirmation message you submit for the brand name, a description of the program, message frequency, "Msg & data rates may apply", HELP instructions and STOP instructions.

For code 6006 (Opt-in Confirmation Msg Missing), the missing piece is the confirmation text. After a subscriber opts in or opts out, a single confirmation message must be sent. Opt-in confirmations restate the program terms; opt-out confirmations state that no more messages will be sent.

Where code 6006 comes from

Code 6006 is a campaign review reason code used to report a specific deficiency found during manual campaign vetting. CSPs surface it in the rejection notice alongside any other codes found in the same review, so check for companion codes before resubmitting. It is marked High severity: it blocks approval, but it is fully fixable by correcting the submission and resubmitting.

Example: opt-in confirmation message for a online retailer

The example below uses a fictional online retailer, Fernway Goods, to show the difference between a submission that triggers code 6006 and one that passes.

Rejected:

(no message is sent after the subscriber opts in)

Approved:

Fernway Goods: You're subscribed to order updates and promotional offers. Up to 6 msgs/month. Msg & data rates may apply. Reply HELP for help. Reply STOP to opt out.

Fix and verify before resubmitting

1. Submit the exact confirmation text your platform sends, not a paraphrase.
2. Add the confirmation text where code 6006 flagged it, using the approved wording for Fernway Goods's program shown above.
3. Keep it within two segments if possible so carriers do not truncate the disclosures.
4. Trigger the flow with a test number and compare the live message with the submitted sample.
5. Make sure no marketing offer is placed before the required disclosures.
6. Confirm the same message is sent for every opt-in path (keyword, web, verbal).
7. Resubmit with a note that references code 6006 and quotes the corrected confirmation text.

Sample resubmission note

Many CSPs let you add a note for the reviewer when you resubmit. A short, specific note shows what changed and speeds up the second review. Example for Fernway Goods:

Fernway Goods corrected the deficiency reported as code 6006 (Opt-in Confirmation Msg Missing). Changes made: submit the exact confirmation text your platform sends, not a paraphrase; add the confirmation text where code 6006 flagged it, using the approved wording for Fernway Goods's program shown above; keep it within two segments if possible so carriers do not truncate the disclosures. All URLs, keywords and auto-replies were re-tested from an external network before this resubmission, and the campaign text now matches the live opt-in exactly.

Common mistakes that keep code 6006 coming back

• Sending nothing after STOP so the subscriber cannot tell it worked.
• Sending several messages after STOP, including a win-back offer.
• Using a confirmation that omits the brand name.
• Editing the sample in the campaign but not the auto-reply the platform actually sends.

Related rejection codes

• Code 6011: STOP Msg Missing Confirmation Text
• Code 5102: Opt-out Missing Confirmation Text
• Code 6005: Opt-in Msg Missing Fee Disclosure
• Code 6004: Opt-in Msg Missing Frequency Disclosure
• Code 6003: Opt-in Msg Missing STOP Info
• Code 6002: Opt-in Msg Missing HELP Info

Frequently asked questions about code 6006

Does code 6006 mean the whole campaign is non-compliant?

No. Code 6006 points to one gap: the confirmation text in your opt-in confirmation message. Fix that gap, check the rest of the submission against the same checklist, and resubmit. Reviewers often list only the first deficiency they find, so a full self-check prevents a second rejection.

Where exactly should the confirmation text appear?

Put the required elements in the opt-in confirmation text itself, ideally in the first segment. After a subscriber opts in or opts out, a single confirmation message must be sent.

Do I fix my live opt-in confirmation message or only the campaign text?

Both. Change the auto-reply in your messaging platform and paste the identical text into the campaign's opt-in message field.