Thanks for details, So this conref could be like a Note/Warning used in multiple topics. Identifying the impacted topics and finding the ditamaps that should be republished is available as metadata in system but not yet exposed for such use case. With that what I mean is, the feature you need is not...

So, when you say that a topic is reused in 200 sites, do you have 200 ditamaps that publish the reused topic to corresponding site pages? Are these translated copies or same language content hosted via 200 different URLs?

@robertk30941538 : how are you publishing those topics? via ditamap? AEM maintains references of each asset to its corresponding DITAMaps and pages where those assets are used. Having said that, there can be few possibilities but depends on your input on above question.

@Kiran_Mohan : what are the general use cases where I should use keys or variables in DITA?

Background You are using AEM Guides and you publish the DITA content using DITA-OT.   Requirement When using DITA-OT, sometimes you need to use your own version of DITA-OT. The product supplies a specific version of DITA-OT in its release (the latest one when the product version gets released, e.g. ...

The steps to add a custom DITA-OT are documented in the section "Use custom DITA-OT plug-ins" of Installation and Configuration Guide   On a high level the steps are: Get the basic DITA-OT If you want to obtain copy of out-of-the-box DITA-OT from XML Documentation, download it from path "/etc/fmdita...