If you are experiencing issues with your spreadsheet, here are some common solutions.
You need at least one 'To' column.
Make sure you have at least one column called "To" which contains the email addresses of the recipients.
Do not use AutoFilters.
SecureMailMerge does not support AutoFilters and the campaign will use all the rows in the spreadsheet even if you have a filter applied.
All columns must have a title
If a column does not have a title in the first row it is regarded as missing and halts the processing, see next item.
Do not have empty columns or rows.
If empty columns or rows are present, processing will halt at that point. In the following example the plugin does not see anything to the right of "Name" and below Alex. So it will return an error that there there is an invalid email address on line 2.
