SSL offload

What are the steps to import a SAN/UCC certificate on to LTM (PKCS 12 IIS format))? I can import using the normal procedure, but getting the following message:

 

 

Bad Characters. Only the following special characters are allowed: period, asterisk, forward slash, dash, colon, underscore, question mark, equals, at sign, comma, ampersand and space (.*/-:_?=@,& )