MID server config parameters not showing in instance : Host name exceeds 120 charactersIssue MID server config parameters appearing blank in customer instance with Error "Logged in user xxx doest not match configured user. Check MID server user configuration". The issue may stem from the length of the host name chosen by the customer. The script for the retrieval of the MID server ID with regards to the config file is a combination of host name + MID server. This ID should be no more than 120 characters. Because host name alone (without MID server name) was already equal / larger than 120 characters length in our case, it never reached the character position of reading the MID name that is at the end of the MID server ID and is truncated.CauseMID server config parameters not showing in instance : Host name from customer exceeds 120 characters, causes the MID server name to appear blank in configuration parameters.ResolutionShortening the name of the host name will solve the error of the MID server name not being updated in the records. The change of the host name will be completed and the error wont come.