Perform the following steps to configure Config System Properties:

  1. Go to Setup > in the Quick Find Box, search and select Custom Settings.
  2. Click Config System Properties > Manage.
  3. Click System Properties > Edit.
  4. Enter the Instance Url. For example, https://commercedomainame.my.salesforce.com
  5. Click Save.

Follow above all steps to configure Instance Url for Comply System Properties.

Perform the following steps to configure Config Custom Classes:

  1. Go to Setup > in the Quick Find Box, search and select Custom Settings.
  2. Click Config Custom Classes > Manage.
  3. Click System Properties > Edit.
  4. In the Tax Callback Class, enter Apttus_Webstore.APTS_TaxCallBack.
  5. Click Save.