Customer numbers not showing

hi guys
i work with customer numbers that used to show when i printed my invoices
since the last update it doesn’t show the customer number anymore
please fix this that the numbers show again

This change was made quite a while ago. Customer codes used to appear automatically, but could be suppressed with a custom theme. After the change, they are automatically suppressed, but can be displayed with a custom theme. Read this Guide for instructions: https://www.manager.io/guides/7716.