How To Fix TT008 - Invalid test case name: "&"

SAP Error Message - Details

• Message type: E = Error

• Message class: TT - Extended Computer Aided Test Tool (eCATT) messages

• Message number: 008

• Message text: Invalid test case name: "&"

What causes this issue?

The specified procedure number is not in the name space.
SAP name space SSSYXXXX
Customer name space ZSSSYXXX
Z fixed value for customer name space
SSS three-character Id of the system on which the procedure was
created
Y serial number from 0 - Z
X serial number from 0 - 9

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.