AMAR: My starting number doesn't match last AMAR's ending number

The AMAR is a report of the data for this return period, based on the date on which you generate the report.

The beginning number is not a carryover from the ending number of the prior period, because the state of the database has changed over the last year due to late-entry losses, adjustment events, or corrective historical entries.

In the past, this discrepancy between numbers was what caused unexplained variances.

In most cases, the discrepancy between last year's ending number and this year's starting number are explained by Adjustment Events (like a late-entry Died event).

In Summary: 

The starting member number in the AMAR report:

• Is based on the date the report is generated.
• Does not carry over from the previous period's ending number.
• Changes occur due to late-entry losses, adjustment events, or corrections.
• Discrepancies between last year's ending and this year's starting numbers are usually explained by adjustment events like late-entry death events.