How to update managers budget automatically when a worker becomes eligible?

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We are using Worker-level budgeting, to make the issue clear lets assume we give each worker $100 and this gets rolled up to manager level.

Lets assume a manager has 5 workers and 4 of them are eligible therefore he has got budget of $400. Now when we make the 5th worker eligible, we expect that manager's budget should be updated to $500, but this is not happening.

May I know how this can be achieved rather than allocating additional budget to manager manually.

Thanks

Version (include the version you are using, if applicable):

21C

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