CCM version 4.2.3
The limit been 1024
I have seen that documentation, but for testing only when I add partitions for CSS exceeding 512 characters, I get a pop up saying to remove some partitions and make sure that character are 512.
Calling Search Space CSS character limit has been exceeded. The list of selected partition names has 933 characters.
The total number of characters for the list of partiton names in a CSS, separated by colon (for example, partition 1:partition 2:partition 3), may not exceed 512 characters. Remove some partitions or shorten the names of the partitions you want to include in this Calling Search Space.