SAP Message 3L227 - There are unauthorized characters "&" in CURP

Diagnosis
Incorrect CURP format. You have entered numbers, symbols or vowelsinstead of the consonants required.
The CURP correct format is as follows: BAUG660913HDFLRR06
^^^
Names and surnames
internal consonants

System Response
The system interrupts the program run.

Procedure
Correct the unaccepted characters.