S7503X wireless authorization error

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The device supports integrated AC and wireless license, but when the fifth license is used, an error is reported. Does the device only support 4?

1. When checking the error message, it shows that there is no space to save the license, and the maximum number of views is only 4:

[H3C]license activation-file install flash:/210235xxxx0C700C2023083117154767228.ak 

This operation might take some time. Do not perform any other operations until the operation is completed or a failure message is displayed. Please wait...

No sufficient space available for saving the activation file.

[H3C]dis license feature
Total: 4  Usage: 4
Feature                         Licensed        State          
APMGR                           Y               Formal         
EVB                             N               -              
FCoE                            N               -              
MC-NAT                          N               -              
OPENXCVR                        N               -               
TRILL                           N               -              
evi                             N               -              
mdc                             N               -   

2. Confirm with R&D that the maximum device supports only 4 licenses

Please purchase large-sized licenses that support multiple APs, so you don"t need to install so many licenses.