How to override account rules based on warranty repair on maintenance work order?

Summary:

We would like to override the maintenance cost SLA based on whether it's a 'Warranty Repair' or not then to determine the accounting distribution. However we cannot find the corresponding source from the account rules

Content (please ensure you mask any confidential information):

Would seek your help to see which accounting source can be used to determine the 'Warranty Repair' in SLA

while cannot find corresponding accounting source based upon

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