How to solve – “Print header is invalid”
The image selected for the top of the receipt cannot be loaded correctly.
- In the Admin Center, go to Setup → Companies and select the company.
- Open Files and upload the header image again.
- Go to Setup → Locations.
- Select the affected location.
- Open Menu → Settings and select the newly uploaded file as the print header image.
- Repeat the setup for other affected locations.
Indepth guide link: "Receipt layout"