There are a few ways I know of the find the customer from the Customer ID. They all involve accessing Quickbooks API either directly or via a subscription to a service that can access the API or via a service like Postman.. Is this something you you need to do regularly or is this just a one time thing? I have done this many times before to extract data from Quickbooks. Let me know if you want to discuss further.
It is so far just a 1 time thing, but my backups require a scan and save a backup then an attempt to fix that doesn’t happen in the QB data base. I think that one customer has a corrupted Credit card since only 1 customer ID shows . Please keep it simple. I am well versed in QB for what I do in it but I don’t know the terminology like API Not a novice but this is not my lane.
A Customer ID is an internal backend number used by QuickBooks Desktop and cannot be searched or viewed in the standard interface. When Encryption Error 310 occurs, the system logs it using this database ID.
Since you are working with raw database identifiers and error logs, we recommend posting your query in the Intuit Developer Community. The developers and engineers there specialize in backend data structures and can help you troubleshoot this issue.
In the meantime, you can export your entire customer list and open the file in Excel to view customers alongside their ID numbers in the REFNUM column.
Here's how:
Go to File > Utilities.
Select Export, then Lists to IIF Files.
Check Customer List and click OK.
Choose where to save the file and click Save.
Open the exported file in Excel to review your data.
If you have other questions about the program, please don’t hesitate to click the Reply button.