Paper size name does not match between Application and Plotter on autocad

[taitrongsong]

I created an application to get the paper size list using commands in lisp, however, the paper size name in the App is not the same as the paper size name in the plotter, so I cannot reference it when printing, how to fix this error? Thanks everyone,
For example:
The paper size name in the app is UserDefinedMetric (297x1680) but in the plotter it is User3 (297x1680)

App:

Plotter in Autocad:

[paullimapa]

Perhaps this thread may help

[taitrongsong]

i followed your instructions but it didn't work, is there any more instructions?

[paullimapa]

If your app code is open source lisp l, then share that file here for community to take a look at

[Sea-Haven]

You have to be very careful and match exactly page sizes even down to spaces in the page size description. Take a careful look may be (297 x 1680)

Please paste a clip of the page sizes can not read a full screen.