Language &1 could not be added. Maximum number exceeded.

What causes this issue?

You tried to add a language to the I18n language configuration. But this
was not possible because the maximum number of activate languages is
restricted to 240.

System Response

The language was not added to the I18n language configuration.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.