This question runs in a pre-configured Salesforce environment - no personal connection required.

Query all Prospect accounts and reclassify them as Customer if their AnnualRevenue is greater than or equal to a given threshold. Update the matching accounts in bulk and return the number of records updated. Return 0 if no accounts match the threshold. Return 0 for null or negative threshold values.

Method Signature: public static Integer consolidateAccountTypes(Decimal revenueThreshold)

Examples:

Input: revenueThreshold = 999999999 Output: 0 Explanation: No Prospect accounts have revenue that high, so no updates occur Input: revenueThreshold = null Output: 0 Explanation: Null threshold is invalid, return 0 immediately Input: revenueThreshold = -100 Output: 0 Explanation: Negative threshold is invalid, return 0 immediately Input: revenueThreshold = 0 Output: (count of Prospect accounts with non-null AnnualRevenue) Explanation: All Prospect accounts with a defined revenue qualify at threshold 0
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