I want to set credit_limit in customer list on customer name wise

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I get customer wise payment entry through appl buttton on customer list you can see in this image

Screenshot from 2022-12-31 12-27-01
Screenshot from 2022-12-31 12-27-011710×409 106 KB

i want to set particular customer wise credit limit field in get payment entry total of particular customer how to set it using server script