If the Eval version is all you have access to you can totally convert it to the correct version and apply. Use this method to change eval to VLSC License 

Server 2019 Activation Error: Run “slui.exe 0x2a 0xC004F069” to display the error text

nThis can be worked around by using two DISM commands.\r\nn

Open an elevated command prompt, and type (or copy) DISM.exe /Online /Get-TargetEditions

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Then enter DISM /online /Set-Edition:ServerStandard /ProductKey:ENTER-YOUR-SERIAL-FROM-TABLE /AcceptEula (use key from below table if this is a MAK/Volume license key)\r\nn

It may get stuck on the 10% mark for a few

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Use one of the below keys first:\r\nn

OR 

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For Retialn

To activate your Windows Server:

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1. Enter key via GUI or run the command: slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX\r\nn

To get the available editions:
1. Open an elevated command prompt.
2. Run the following command: DISM.exe /Online /Get-TargetEditions

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To set your Windows Server to a higher edition:
1. Run the following command: DISM.exe /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
(Use key from table below if this is a MAK/Volume license key)\r\nn

And a link to the resource I useHere are the notes to get an MAK key working on an evaluation ISO.\r\n

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https://docs.microsoft.com/en-us/answers/questions/58587/windows-server-2019-activation-from-evaluat...

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Windows Server 2022 - KMS Client Setup Key

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Windows Server 2022 Datacenter
- WX4NM-KYWYW-QJJR4-XV3QB-6VM33\r\nn

Windows Server 2022 Standard
- VDYBN-27WPP-V4HQT-9VMD4-VMK7H

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Windows Server 2019 - KMS Client Setup Key\r\nn

Windows Server 2019 Datacenter
- WMDGN-G9PQG-XVVXX-R3X43-63DFG

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Windows Server 2019 Standard
- N69G4-B89J2-4G8F4-WWYCC-J464C\r\nn

Windows Server 2019 Essentials
- WVDHN-86M7X-466P6-VHXV7-YY726

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Windows Server 2016 - KMS Client Setup Key\r\nn

Windows Server 2016 Datacenter
- CB7KF-BWN84-R7R2Y-793K2-8XDDG

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Windows Server 2016 Standard
- WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY\r\nn

Windows Server 2016 Essentials
- JCKRF-N37P4-C2D82-9YXRT-4M63B

nWindows Server 2019
Product GVLK
Windows Server 2019 Datacenter WMDGN-G9PQG-XVVXX-R3X43-63DFG
Windows Server 2019 Standard N69G4-B89J2-4G8F4-WWYCC-J464C
Windows Server 2019 Essentials WVDHN-86M7X-466P6-VHXV7-YY726
Windows Server 2019 Azure Core FDNH6-VW9RW-BXPJ7-4XTYG-239TB
Windows Server 2019 Datacenter Semi-Annual Channel (v.1809) 6NMRW-2C8FM-D24W7-TQWMY-CWH2D
Windows Server 2019 Standard Semi-Annual Channel (v.1809) N2KJX-J94YW-TQVFB-DG9YT-724CC
Windows Server 2019 ARM64 GRFBW-QNDC4-6QBHG-CCK3B-2PR88
Windows Server 2016
Product GVLK
Windows Server 2016 Standard Semi-Annual Channel (v.1803) PTXN8-JFHJM-4WC78-MPCBR-9W4KR
Windows Server 2016 Datacenter Semi-Annual Channel (v.1803) 2HXDN-KRXHB-GPYC7-YCKFJ-7FVDG
Windows Server 2016 Datacenter Semi-Annual Channel (v.1709) 6Y6KB-N82V8-D8CQV-23MJW-BWTG6
Windows Server 2016 Standard Semi-Annual Channel (v.1709) DPCNP-XQFKJ-BJF7R-FRC8D-GF6G4
Windows Server 2016 ARM64 K9FYF-G6NCK-73M32-XMVPY-F9DRR
Windows Server 2016 Datacenter CB7KF-BWN84-R7R2Y-793K2-8XDDG
Windows Server 2016 Standard WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY
Windows Server 2016 Essentials JCKRF-N37P4-C2D82-9YXRT-4M63B
Windows Server 2016 Cloud Storage QN4C6-GBJD2-FB422-GHWJK-GJG2R
Windows Server 2016 Azure Core VP34G-4NPPG-79JTQ-864T4-R3MQX
WNCYY-GFBH2-M4WTT-XQ2FP-PG2K9
Finally reboot and enter your purchased key:
- Enter key via GUI
or
- slmgr.vbs /ipk
- slmgr.vbs /ato