HI Angela,

The error "Variable does not exist: Earning_Attachment_Pay_Element_Type__c" typically occurs when the referenced variable is not declared or accessible in the current context. In the provided code snippet, it seems that "Earning_Attachment_Pay_Element_Type__c" is being used as a field on the "payElement" object. However, it's important to ensure that the "payElement" object has a field with the API name "Earning_Attachment_Pay_Element_Type__c".

Recommended checks:
> Verify that the field "Earning_Attachment_Pay_Element_Type__c" exists on the object "payElement". Ensure that the API name is correct and that the field is accessible in the context where the formula is being used.

> Ensure that the "payElement" object is correctly referenced and accessible in the context where the formula is being used. Check the object's visibility and accessibility based on the user's profile and permissions.

> If "Earning_Attachment_Pay_Element_Type__c" is part of a managed package or has a namespace prefix, ensure that the correct namespace prefix is used when referencing the field.

> If the formula is being used within an Apex class, ensure that the "payElement" object is properly instantiated and that the field is accessible within the class scope.

See related:
https://salesforce.stackexchange.com/questions/40918/apex-compile-error-variable-does-not-exist
https://www.janbasktraining.com/community/salesforce/how-to-resolve-the-apex-compile-error-variable-does-not-exist

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