If you have multiple prime parents for a child but there are certain messages that you only want one of the parents to receive, you are able to temporarily ‘opt out’ the parent who you do not want to receive the message.
This can be actioned via Dashboard > School Members > Search for child > Linked People > Highlight parent > Opt out
You can then send the message as normal, and the parent who is opted out will not receive the message.
Once you have sent the message, you can then opt the parent back in using the same instructions as above, to ensure they can receive future messages from you and access School Gateway again.