Some of the contacts in your sequences may be marked as "Missing data" for a number of reasons. You can check the status on the People → Contacts page, or navigate to Sequences, open the necessary sequence, and click the People tab. The status will be shown in the grid labeled with a red color, as shown below:
Why are contacts marked as "Missing data"?
There are several reasons why the contacts may have "Missing data" status:
The data is missing in the contact profile. Some of the data that needs to be used in variables in Steps templates in your sequence may be missed. If the corresponding field in the contact profile is empty, the system will mark the contact as missing data and block such contacts from receiving messages from a sequence.
The phone number is invalid. Another reason why the status of the contact can be "Missing data" is that the added phone number in the contact profile is invalid. If there is an auto SMS step, the system will first check whether the phone number is valid and only then send an auto SMS. In the event that the phone number is invalid, the system will assign a "Missing data" status.
How can you fix the "Missing data" status?
To make the status of your contacts active:
Navigate to the Sequences page and open the necessary sequence.
Click on the Preview tab and check the necessary contacts for which variables are missing in the sequence:
3. Add missing information to contact profiles or remove variables from the templates.
4. Open the People page, select all contacts with an invalid status, and set the status to "Active."
That's it! Contacts will have the "Active" status, and the sequence will be resumed.