Message SAP BGRFC539 - bgRFC Inbound Destination &1: Name contains invalid characters

Diagnosis
The name of the inbound bgRFC destination contains invalid characters.The following characters are allowed: The first character is a letter(uppercase or lowercase); other characters: uppercase or lowercaseletters, digits, and the underscore.

Procedure
Choose a name for the inbound destination that consists of only thespecified characters.