How do I fix a heap size error on the data wizard?

If you see a heap size error when running the data wizard, you can adjust how many records we process per execution.  The fewer the records the less memory used, the import will run a little slower but for most people this will not be noticeable. Follow the steps below to adjust to 100.

1. Go to the Mailchimp Settings tab.

2. Select Maintenance from the menu.

3. Click on Settings from the dropdown next to Reports.

4. Locate the ‘Data Wizard SOQL records per execution’ setting.

5. Change the value to 100 and save the settings.

This adjustment should help optimize your process. However, if necessary, you can reduce it further, ultimately to 1 record. If you reach 1, then you should probably check other custom code, flows, or processes that are running outside of our product.