SNOW-CAD Practice Question: Automating application logic with business rules and scripts
A senior developer has created a complex business rule called 'Asset Assignment' on the 'alm_asset' table that runs after insert. The rule queries the 'User' table to find a manager and assigns the asset to that manager's department via a GlideRecord update. The rule has an order of 100. Another business rule called 'Asset Log' on the same table also runs after insert with an order of 200, which logs the assignment in a separate table. After deploying to production, the 'Asset Log' rule executes but the assignment update from 'Asset Assignment' fails silently. The developer discovers that the 'Asset Assignment' rule has a condition script that references a new field that was not added to the 'alm_asset' table in production. The field exists in the developer's instance but not in production. The developer wants to minimize disruption and fix the issue quickly. Which action should the developer take?
A. Change the condition script to check if the field exists before using it, and if not, exit the script gracefully. B. Reorder the business rules so that 'Asset Log' runs first and 'Asset Assignment' runs second, and add a condition to 'Asset Log' to only run if the assignment succeeded. C. Remove the condition from 'Asset Assignment' and move the field existence check into the script, setting the field value only if it exists. D. Deactivate the 'Asset Assignment' business rule until the field is added to the table in production, then reactivate it after the next maintenance window.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the condition script to check if the field exists before using it, and if not, exit the script gracefully.
It is the quickest fix with minimal disruption: by checking if the field exists in the condition script, the business rule gracefully exits without error when the field is missing, and once the field is added, the condition will pass and the rule will run as intended. Option A is incorrect because reordering does not address the root cause; the 'Asset Assignment' rule would still fail due to the missing field. Option B is incorrect because moving the check into the script (instead of the condition) would not prevent the condition script from referencing the missing field; the condition script would still error. Option C is incorrect because deactivating the rule prevents the intended functionality entirely until the field is added, which is more disruptive than a simple condition check.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reorder the business rules so that 'Asset Log' runs first and 'Asset Assignment' runs second, and add a condition to 'Asset Log' to only run if the assignment succeeded.
Why it's wrong here
Reordering does not fix the missing field issue; the assignment rule will still fail.
- ✗
Remove the condition from 'Asset Assignment' and move the field existence check into the script, setting the field value only if it exists.
Why it's wrong here
Removing the condition could cause the script to run unnecessarily; also, the script would still need a field existence check.
- ✗
Deactivate the 'Asset Assignment' business rule until the field is added to the table in production, then reactivate it after the next maintenance window.
Why it's wrong here
Deactivating prevents the assignment functionality entirely, which is more disruptive than adding a condition check.
- ✓
Change the condition script to check if the field exists before using it, and if not, exit the script gracefully.
Why this is correct
This prevents the rule from failing when the field is missing and will work once the field is added.
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