We've been struggling to source check stock that will match the included reports in the Business Central Public Cloud.

Here are the check reports of concern:
1401 Check
10401 Check (Stub/Stub/Check)
10411 Check (Stub/Check/Stub)
10412 Check (Check/Stub/Stub)
10413 Three Checks per Page

It would be great if Microsoft could recommend a supplier that guarantees BC compatible check stock.

The general procedure right now is to try to buy some check stock that is close and tweak the reports as needed. Seems like Deluxe is the best supplier so far.

Deluxe Check Stock that can be used for Business Central:
https://www.deluxe.com/

The following are the Deluxe Products for the Check Report ID’s in Business Central:
FLB500 - 10401 Stub/Stub/Check
DLT120 – 10412 Check/Stub/Stub
DLA108 - 10413 Three Checks Per Page
DLM121 – 10411 Stub/Check/Stub