Hello @Sabti SM (Shaikhah) IT
Thank you for reaching out.
I would like to confirm that you can set multiple reply URLs in a given enterprise application and maximum limit is 256 which is documented here. Despite having multiple reply URL's the token can only be posted to one of the Reply URLs configured in the application, depending on which Reply URL or Assertion Consumer Service URL is included in the authentication request. If the Assertion Consumer Service URL is not included, the SAML Response will be sent to the first Reply URL in the list.
Even though there can be multiple reply URLs configured in the application, the token will only be posted to the one included in the SAML request.
This question was answered by one of my colleagues as well and a sample request was provided in this thread.
I hope the thread mentioned above will answer your query.
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