The difference between basic Account and the Dynamic Accounts is that in the latter you can specify the Account properties as expressions referencing pipeline parameters. You can Validate an account connection when creating a basic account, but not when creating the Dynamic Accounts because the account properties are provided dynamically.
The following examples show the settings for a basic account and a dynamic account.
Example 1: In a basic account, the values are passed directly and validated. First Validate and then click Apply to save the credentials.
Example 2: For the CRM dynamic Account, the values, _snapserver and _CRMOrganization, are passed for the CRM Organization Service endpoint and CRM Organization properties using the pipeline parameters.
The Id Value is passed to the Dynamics CRM Upsert Snap(_Id) using the pipeline parameters.