We had an issue today where “Transport using CTS” option was disabled in ESR.Under the option Tools -> Export Design Objects -> Transport Using File System is the only mode available but when I try in the Integration Directory for Configuration Objects Tools -> Export Configuration Objects -> Transport Using CTS mode is available.
Below are the steps that I followed to fix the issue.
You can configure CTS for either repository objects or directory objects independently from each other.There are two parameters in the Exchange Profile which are mostly
responsible for this.
Goto below path to check and set those parameters
This property specifies whether the CTS-based transport should be offered within the change lists area.Set it as Boolean and set th evalue as “True”
This property specifies whether the CTS-based transport should be offered within the Transport Wizard area.Set it as Boolean and set th evalue as “True”
After that issue was resolved.