The user is attempting to select a different Supplier, VAT, Category code from an invoice's dropdown menus, but it keep changing back to the previous selection automatically.
The cause of this issue would be that you are attempting to override a previously remembered code, without saving the new code as a remembered code.
To resolve this issue, please do the following:
AutoEntry will ask if you want a selections to be remembered. When you select the new code from the dropdown menu, please click 'Yes'.
Open the Supplier Settings for the corresponding purchase invoice, and update the remembered code here also.
For a more thorough overview of AutoEntry's Supplier Settings, please click here.