Is it possible to edit Redwood self-servie procurement to add validation to validate the quantity

Summary:

Requiremet : Quantity Based Validation for Major Items with Cost Element 500000 as per the Purchase Requisitions’ Project Task should be implemented where a Message would be displayed showing the working balance with status as Passed or Failed during PR Submission. This should work the same way how the budget checking is happening at the PO level.

Is it possible to edit Redwood self-servie procurement page to add validation to validate the quantity entered by the user against the data present in PAAS DB.

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