Which two solutions prevent a formula field from being referenced by a Roll-Up Summary field?

The correct answers are A. The NOW() function in the formula field and D. A cross-object field referenced in the formula field.

Salesforce allows roll-up summary fields to summarize formula fields only when the formula does not contain unsupported dynamic or cross-object references. Salesforce documentation states that roll-up summaries can calculate formula fields only if the formula does not contain cross-object field references or functions that derive values dynamically, such as NOW() or TODAY().

A is correct because NOW() changes dynamically based on current date/time.

D is correct because cross-object field references prevent the formula from being used in the roll-up summary.

C is incorrect because CASE() itself is allowed.

B is incorrect because the issue is not simply a field update; the restriction is specifically cross-object references or dynamic formula functions inside the formula being summarized.

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