Explanation:

Comprehensive Detailed Explanation
You trained an object detection model obj1 inside project proj1 on the acvdev Custom Vision resource and need to move it to the acvprod resource.
Moving a model between Custom Vision resources is done by exporting the project (not an iteration) from the source resource and importing it into the target resource.
Step 1: GetProjects (acvdev)
Retrieve the list of projects on the development resource to obtain the project ID of proj1 . The export operation requires the project ID.
Step 2: ExportProject (acvdev)
Call the Export Project API on the development resource to generate the portable project package (includes tags, images' metadata, iterations, settings). This is specifically intended for moving/cloning a project across resources or regions.
Step 3: ImportProject (acvprod)
Use the Import Project API on the production resource to create a new project from the exported package.
This recreates the project (and associated iterations/metadata) under acvprod .
Notes:
ExportIteration is for exporting a trained iteration to formats for edge/container or mobile use, not for transferring to another Custom Vision resource.
UpdateProject is for changing metadata (name, description, domain) of an existing project and is not part of the move workflow.
References (Microsoft Azure AI Solution)
Custom Vision REST API - Projects: Export/Import
https://learn.microsoft.com/azure/ai-services/custom-vision-service/export-import-project Custom Vision REST API - Projects API (Get projects)
https://learn.microsoft.com/rest/api/customvision/training/projects
Custom Vision - Export model vs. Export project guidance
https://learn.microsoft.com/azure/ai-services/custom-vision-service/export-your-model (describes iteration export purpose versus project portability)