c844ae6e_AFFQ_and_KAFTQ_for_CAF_Inquiry__REASON
[MESSAGE] INVALID SSN/EIN MUST BE NUMERIC [ACTION] Correct the TIN and re-enter. [REASON] 
SSN/EIN is either missing, not numeric or not in the correct format
Internal Revenue Manual - 2.3.31 Command Codes CFINK , RPINK, KAFFQ and KAFTQ for CAF Inquiry