Debit Memo or "DM" coded Allowances are often related to agreed upon terms, contracts, or other allowance related details. When evaluating these charges, additional context may be required from internal agreements or information not stored in Lowe's.
What is available, is a high level Deduction Reason. These messages can vary quite significantly, but will be an important part of the review of the claim. This is located within the Deduction Details card under the high level date and amount for this deduction.
For deeper details, the Debit Memo Allowance Card on the right side of the screen, will give a lot more specific information. Included in this is a Download File option, which will provide an excel/csv of additional line level records for the reference Program #/ Period.
The key from here is to review the downloaded file, mark it up/ add notes as needed and if you choose, dispute these details to Lowe's if you believe there was an issue with what you were charged. The more focused and specific your dispute can be, the better.
Within the file, you can expect some or all of the following info:
Location Number
Sales Information (Quantity, $ Amount, Units, etc.)
Order IDs
Run Date
Item Information (#, Description, Categories)
In a lot of cases, these will likely be valid. The biggest determiner of validity, will be verifying based on the contracts referenced if anything was charged in excess of what was expected, volume constraints were considered, or agreed percentages were honored during calculations.