10000446 
Message
In "DPM" down payment amount field, enter amount equal to or less than total
Diagnosis
You have created an A/R or A/P down payment or down payment request. In the DPM amount field, you have entered a value that is greater than the document total, but this is not allowed in SAP Business One.
Procedure
In the DPM amount field, enter a value that is less than or equal to the document total.