Debtors Days DAX Calculation

Hi deniseg ,

'Month Year Date'[Date] is the date column of a marked date table. And Try the following formula:

Average Receivables = 
CALCULATE(
    AVERAGE('AR v AP Database'[Amount]),
    DATESINPERIOD( 'Month Year Date'[Date], LASTDATE('AR v AP Database'[Date]), -2, MONTH ), 
    FILTER(
        ALL('AR v AP Database'),
        'AR v AP Database'[AR v AP] = "AR"
    ),
    GROUPBY('AR v AP Database','AR v AP Database'[AR v AP])
)

If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.

Best Regards,
Winniz

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