flow external services

using flow and external services to cause minor mayhem

the use case : merge salesforce data into a word doc using flow

approach : use a flow button to callout to a microsoft power automate endpoint via external services

useful posts
https://katiekodes.com/flow-apex-defined-data-types/
https://help.salesforce.com/articleView?id=enhanced_external_services_example_schema.htm&type=5

the learnings :
a) no apex defined data types need to be created- the external service schema definition itself is the apex defined data type. just create a variable, type = apex-defined, and for the apex class, select ExternalService__YourExtServiceMethod - it will be waiting for you