How do you have EUR bank details on your EUR Invoice Template and ZAR bank details on your ZAR invoice Template? Each time a new invoice is made out, it goes to default

Hello and welcome to  the Community, Martin.

In QBO, you're not able to set up different bank details for each invoice template for EUR and ZAR.  Changes to the Your payment details section are universal and will apply to all  sales form templates, both past and future, due to QBO’s reliance on default settings for payment details rather than template-specific customization.

As a workaround, you can add footer text to your template to see the bank details on your invoice. Here’s how:

1. Click on the Gear icon in the top right corner.
2. Navigate to Custom Form Styles.
3. Select New Style from the dropdown menu, and choose Invoice.
4. (Optional) Give your invoice template a unique name for easy identification.
5. Switch to the Content tab.
6. Scroll to the bottom section of the template to edit the details.
7. Enter your bank details in the Add footer text details field. 
8. Click Done to save your customized invoice template.

Another option is to use Custom Fields, accessible within the invoice page itself  by clicking Manage > Customization, where you can add a field titled "Bank Details." This field will automatically appear on the selected invoice template. However, note that if you use custom fields, you will need to manually enter the bank details each time you create an invoice. For additional details, you can check this article: Create and edit custom fields. This article contains steps in using this feature via the Gear icon.

Please let me know if you have any further questions or need additional assistance.