How to identify that a rate based salary basis is updated to include a new rate component?

Summary:

How to identify that a rate based salary basis is updated to include a new rate component?

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Trying to create a HCM interface to check if the salary basis is updated with a new rate component and move the employees to the new salary basis automatically. How to identify that a rate based salary basis is updated to include a new rate component?

Need suggestions on this please!

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