When the a user of the system is converting a prospect into a customer, he is not able to use a manual number sequence.
The system is checking only the number sequence format, but it is not checking if the type is set to manual or automatic.
At the end the customer can create a customer manually with this number sequence but is not able to convert a prospect and receives an error message: Number AGI0004 does not match format ###### appears and the conversion is not completed.