You've made changes to your menu or settings on your posBoss management site...
And you need them to appear on the posBoss iPad till app...
Here's how:
In the posBoss iPad till app, simply press the Settings button at the top right then press the Sync Menu button. This will save any changes to your menu or settings on the management site to the iPad app. This needs to be done on all iPads, if you have more than one.