How To Fix 2Q012 - Character string for host name and SAProuter must be &1 long

2Q012 - Overview

• Message type: E = Error

• Message class: 2Q - TMS Service Message Class

• Message number: 012

• Message text: Character string for host name and SAProuter must be &1 long

What causes this issue?

Communication via RFC occurs using a SAProuter. To do this, the
connection route is stored in a character string. For technical reasons
this character string including the other host name can have a maximum
length of <(>&<)>V1<(>&<)>.

System Response

The character string for the connection route is rejected.

How to fix this error?

Check the connection route. If necessary, enter a shorter character
string (for example, only 1 SAProuter or a shorter host name).

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

2Q012 - Details

• The SAP error message 2Q012 indicates that there is an issue with the length of the character string for the host name and SAProuter. Specifically, it states that the character string must be a certain length (denoted by &1), which typically refers to the maximum allowed length for host names or SAProuter strings in the configuration.
  
  Cause:
  
  Invalid Host Name Length: The host name or SAProuter string you are trying to use exceeds the maximum allowed length or is shorter than the minimum required length.
  Configuration Error: There may be a misconfiguration in the SAP system settings, particularly in the network settings or the SAProuter configuration.
  Typographical Error: There could be a typo in the host name or SAProuter string that is causing it to be invalid.
  
  
  Solution:
  
  Check Host Name Length: Ensure that the host name and SAProuter string conform to the required length. The maximum length for host names is typically 253 characters, but