credit memo generated Automatically for a Active Subscription

Summary:

For A active subscriptions , for a Specific Line Credit Memo got Created Automatically and Line value shows 0 ,

Additionnally

1.This specific line is not interfaced with Invoice .

2. This is a Extended warranty and Covered up to 5yrs upto 2027. But the schedule has stopped when checked in billing summary.

3. Out out of 9 lines Only 8 is interfaced in invoice . ( Specific line which credit memo got created)

I have only Upadted a new Locator and new Customer to the Asset in Installed base assets

Can any one plz help me on this

Thanks in advance.

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