Mobile App Error while Submitting Requests for Mobile Branding

One of the following Error Message is displayed while submitting mobile branding requests

This instance is not authorized to submit Mobile Branding requests. Please contact ServiceNow support with questions. 

Your build failed because either another request is already in progress or there was an unspecified network error.

The error can be caused by the following reasons:

1. Requesting a branded Mobile App is supported only from a Production instance. Sub-production instances are not supported.
   
   
2. Follow the ServiceNow Mobile documentation to request a branded Mobile App:
   • Request and publish a branded mobile app
   • Please do not use the "ServiceNow" keyword anywhere.
     
     
3. The instance needs to allow the .zip file extension as an attachment and it is required for Mobile publishing.
   So check the system property: glide.attachment.extensions. The value should have the zip extension, for example: png,wav,jpeg,txt,tiff,jpg,pdf,ppt,pptx,xls,xlsx,doc,docx,mp3,msg,gif,eml,csv,xml,zip
4. Clear cache after modifying the system property as follow:
   https://<your-instance>.service-now.com/cache.do