Invoice Approval

Summary:

Dear Experts,

One of our requirements is to have Invoice approval based on Invoice Header.Descriptive Flexfield Attribute1 if value is 'Freight" it should go to approval group for approval.

However, if user is creating standard invoice with Invoice Header.Descriptive Flexfield Attribute1 value not selected it is going into error with message.

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Text:An attribute in the UKFreightApproval rule has a null value

Action:Ensure that a value is entered for the mandatory attribute used in the rule configuration or add a not null condition for this attribute.

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Freight approval Rule setup is like

Invoice Header.Business Unit Name is "**** Business Unit" and