Have a sales invoice that keeps creating each month in error - why is this happening and how do we stop

Hello Drowlands, 

Welcome to the Community page, 

it sounds like you have set up a recurring transaction and that will be why the invoice gets created and sent out each month. 

Can you please check in the main cog wheel top right>under lists click on recurring transactions>you should then see the invoice there in the list>click on the drop down button next to edit on right hand side in action column>then click delete if you do not need this recurring invoice transaction> click on yes this will then remove it and stop it being created for you. 

Any Questions please get back to us.