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Finance | Project Operations, Human Resources, ...
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[BPErrorUnknownLabel] issue (Legacy labels (such as the label id @SYS12345) are case insensitive) while using label in D365 F&O

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Hi Experts,

I am getting below BP warning in my custom model,

Unknown label '@XXX:NotEqualExpression'.  Legacy labels (such as the label id @SYS12345) are case insensitive and modern labels (such as 'MyLabelId' in @MyLabelFile:MyLabelId) are case sensitive. Use upper casing when referring to legacy labels and exact casing for modern labels.

Every week we run the CAR report, and the count of this kind of warnings has been increased significantly (almost 2000 warnings).

Can anyone suggest how we can get rid of this BP warning?

Will this impact negatively in future if we ignore it.

Thank you in advance.

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  • Suggested answer
    André Arnaud de Calavon Profile Picture
    301,037 Super User 2025 Season 2 on at

    Hi Rhushikesh,

    Does the CAR report have the detailed objects mentioned? If so, can you provide some examples on what usage you get these warnings? If the CAR report doesn't have the details, you can enable the BP warnings while performing a build.

    If you are using labels like 'SYS1024', ensure you reference them like '@SYS1024' and not '@sys1024'.

    If you have new modern labels like 'MyWarning' in the label file 'MyNewLabels', ensure they match exactly as they are case sensitive, so reference these like: '@MyNewLabels:MyWarning'.

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