Can multiple Textract Custom Adapters be copied in a single AWS Support ticket?

The documentation does not explicitly specify whether multiple adapter copy requests can be included in a single AWS Support ticket. The provided template shows the format for copying a single adapter, but there is no information that either permits or prohibits including multiple adapters in one ticket.

Given that the documentation only provides a template for a single adapter copy request, the safest approach would be to contact AWS Support directly to clarify whether they can accommodate multiple adapter copy requests in a single ticket. When you submit your support ticket, you could propose the format you've outlined (listing multiple adapters with their respective source and destination details) and ask if this is acceptable, or if separate tickets are required for each adapter.

Since this is an operational process managed through AWS Support rather than a self-service API operation, AWS Support would be best positioned to advise on their preferred ticket format and whether they can process multiple adapter copies efficiently from a single request. This could indeed streamline your environment promotion process if they can accommodate batch requests.
Sources
Copying adapters - Amazon Textract