Final answer:
CIDs should be mapped when using a non Data Courier migration method to preserve component relationships and dependencies during the migration process.
Step-by-step explanation:
CIDs, or Component IDs, should be mapped when using a non Data Courier migration method in order to ensure that the correct components are migrated and that their relationships and dependencies are preserved.
When mapping CIDs, you are essentially mapping the unique identifiers of the different components present in the system. This mapping helps to maintain the integrity and consistency of the migrated data.
For example, let's say you are migrating a website from one platform to another. If you don't map the CIDs, the migrated website may have broken links, missing images, or other issues because the relationships between different components like pages, images, and links were not preserved during the migration process.
By mapping the CIDs, you can ensure that all the necessary components are successfully migrated and that the website functions properly in the new platform.