Add custom fields for account, invoice, and invoice number entities in Zuora.

1. Navigate to Extension Studio > Object Manager in the left navigation menu.
2. In the Objects tab, click Account. The detail page of the Account object opens.
3. Click the Create icon. On the page that opens, specify the settings for the new field and click Save & Close.

   • Name: Entity

   • API Name: Entity__c

   • Description: Optionally enter some description for this entity.

   • Field Type: Picklist.

   • Options: Enter the names that you want to use different invoice numberings for. For example, a company wants to use different invoice numberings for customers in different geographic locations. The picklist options can be UK, US, Sweden, Denmark, etc.

   • Required: Do not enable.

   • Indexed: Enable

   • Unique: Do not enable.

4. Go back to the Object Manager page, and click Invoice.
5. Click the Create icon. On the page that opens, use the same settings as in step 3 and click Save & Close.
6. Add an invoice number custom field with the settings below:

   • Name: Enter a name to identify the invoice number custom field.

   • API Name: An API name will be automatically generated based on the field label that you enter. Revise the name if necessary.

   • Description: Optionally enter some description for this new custom field.

   • Field Type: Text

   • Max Length: 255

   • Required: Do not enable

   • Indexed: Enable

   • Unique: Do not enable