When transmitting data from Charity CRM to Mailchimp, the Charity CRM side follows a two step process.
Once you've selecting a mailing list to and the mailing to, charity CRM will immediately transmit the contact data over to Mailchimp in order to be processed. This process usually only takes a couple of seconds, and if there are any errors you should be informed immediately. On a successful transfer, the checkbox "Merging to Third Party Email" will be ticked.
After this, Mailchimp will begin processing the records and Charity CRM will start periodically polling Mailchimp for completion. Once we get the all clear back from Mailchimp, "Merging to Third Party Email" is unticked and "Merged to Third Party Email" is ticked. At this point, the process is complete and you can use the data within Mailchimp.
If a mailing remains in "Merging to Third Party Email" this either suggests that Mailchimp is still processing the data, or that the task which checks the progress of this has gotten stuck. If this happens, please reach out to us via the Digital Assistant and we can investigate further to find the issue.