Could not use specified username. Value was -4 characters longer than the configured maximum length (16) #404

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OVERLORD · 2026-02-04T19:03:53+03:00

OVERLORD commented

2026-02-04 19:03:53 +03:00

Originally created by @rasulovk on GitHub (Jan 31, 2024).

Login to planka go thought Authentik. And Authentik itself has Domain controller integration for login. Some of the users username longer than others, which cause error, and user cannot login:

planka_1 | 2024-01-31 07:41:32 [E] Sending 500 ("Server Error") response:
planka_1 | Invalid new record.
planka_1 | Details:
planka_1 | Could not use specified username. Violated one or more validation rules:
planka_1 | • Value was -4 characters longer than the configured maximum length (16)
planka_1 |
planka_1 |

Please advise how to change the length of username?

Originally created by @rasulovk on GitHub (Jan 31, 2024). Login to planka go thought Authentik. And Authentik itself has Domain controller integration for login. Some of the users username longer than others, which cause error, and user cannot login: planka_1 | 2024-01-31 07:41:32 [E] Sending 500 ("Server Error") response: planka_1 | Invalid new record. planka_1 | Details: planka_1 | Could not use specified `username`. Violated one or more validation rules: planka_1 | • Value was -4 characters longer than the configured maximum length (16) planka_1 | planka_1 | Please advise how to change the length of username?

OVERLORD closed this issue

2026-02-04 19:03:58 +03:00

OVERLORD commented

2026-02-04 19:04:07 +03:00

@meltyshev commented on GitHub (Jan 31, 2024):

Hi! We've added the ability to ignore username when using OIDC. The new version 1.15.5 is already being built, should be available in about an hour.

UPD: another way is to modify the server/api/models/User.js file and change maxLength, then build your own container. We'll consider adding the ability to have longer usernames in Planka without modification.

@meltyshev commented on GitHub (Jan 31, 2024): Hi! We've added the ability to ignore `username` when using OIDC. The new version 1.15.5 is already being built, should be available in about an hour. UPD: another way is to modify the `server/api/models/User.js` file and change `maxLength`, then build your own container. We'll consider adding the ability to have longer usernames in Planka without modification.

OVERLORD commented

2026-02-04 19:04:19 +03:00

@rasulovk commented on GitHub (Feb 1, 2024):

@meltyshev

Thanks a lot, it is working. :)

@rasulovk commented on GitHub (Feb 1, 2024): @meltyshev Thanks a lot, it is working. :)

OVERLORD commented

2026-02-04 19:04:37 +03:00

@woprandi commented on GitHub (Feb 8, 2024):

Why such a low limit and hard-coded ?

@woprandi commented on GitHub (Feb 8, 2024): Why such a low limit and hard-coded ?

OVERLORD commented

2026-02-04 19:04:43 +03:00

@meltyshev commented on GitHub (Feb 8, 2024):

Why such a low limit and hard-coded ?

Hmm, maybe we really should make the username configurable.

@meltyshev commented on GitHub (Feb 8, 2024): > Why such a low limit and hard-coded ? Hmm, maybe we really should make the username configurable.

OVERLORD commented

2026-02-04 19:04:56 +03:00

@DrumSlayers commented on GitHub (Jan 13, 2025):

Why such a low limit and hard-coded ?

Hmm, maybe we really should make the username configurable.

Yes definitely ! We do have the same issue here

@DrumSlayers commented on GitHub (Jan 13, 2025): > > Why such a low limit and hard-coded ? > > Hmm, maybe we really should make the username configurable. Yes definitely ! We do have the same issue here

OVERLORD referenced this issue

2026-02-04 19:47:21 +03:00

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2026-02-04 21:43:56 +03:00

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OVERLORD referenced this issue

2026-02-04 21:44:00 +03:00

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