The Customer Update message includes the CUSTOMER_UPDATE_PROLOG_DATA segment. This data segment identifies the type of message that is being defined; that is, the segment indicates that the message is a Customer Update message with a field value of UC (Update Customer).

The format and the source of the fields for CUSTOMER_UPDATE_PROLOG_DATA are described in the following table:

Field Name Field Type Field Value
NC_MsgType CHAR (10) UC
NC_MsgVersion CHAR (2) 01
NC_RESERVED CHAR (10) Reserved for IBM use.