Can anyone please let me know the upper threshold limit on creating custom policy ? Below is the Link.https://developer.adobe.com/experience-platform-apis/references/policy-service/#tag/Policies/operati...Also please do let me know what is the maximum number of policies I can get in single API call ...

No it is not polling, we are trying to call the endpoint parallely .Suppose if the endpoint https://cloudmanager.adobe.io/api/programs has 10000 program id. if we are calling endpoint through multithread environment, api call will be made at the  rate of 5 request in sec, in such case will it cause ...

as per our requirement we are trying to call the endpoint nearly 200 times within minute?   Could you please let me know what is the default rate limit for these endpoints and is it configurable?

What is the rate limit for these apis https://cloudmanager.adobe.io/api/programs   https://cloudmanager.adobe.io/api/program/{ProgramId}/NetworkInfrastructure   https://cloudmanager.adobe.io/api/program/{ProgramId}/Environments