Hi Tahar, I can see you’ve got our Store Toolkit Plugin installed so you’re on the right track. It’s likely that ” :” gap that’s stopping you from exporting. Copy the following lines and try saving custom fields.
Nike Store informations – Email :
Nike Store informations – Password :
(see the first two lines have a space then double-colon)
If this persists open up a Support ticket and we’ll get this looked at together 🙂